CVE-2025-43529

The vulnerability in question is characterized as a use-after-free issue, which is a critical memory management flaw that can lead to arbitrary code execution. This type of vulnerability occurs when a program continues to use a pointer after the memory it points to has been freed. In the context of affected Apple products, such as Safari, iOS, iPadOS, macOS, tvOS, visionOS, and watchOS, this flaw arises from improper handling of memory, allowing maliciously crafted web content to exploit the flaw. The implications of this vulnerability are significant, as it can enable an attacker to execute arbitrary code on the affected device, potentially gaining unauthorized access to sensitive information or control over the device itself.

Attack vectors for this vulnerability primarily involve the exploitation of web browsers, particularly Safari, where users may encounter malicious web content. An attacker could craft a web page designed to trigger the use-after-free condition, leading to the execution of arbitrary code when the page is rendered. This exploitation could be particularly effective against targeted individuals, as evidenced by reports of sophisticated attacks leveraging this vulnerability. Users of affected devices who visit compromised websites or interact with malicious links could unwittingly become victims, allowing attackers to execute code that could compromise their personal data or device integrity.

The real-world impact of this vulnerability is substantial, especially for businesses that rely on Apple products for their operations. The potential for arbitrary code execution poses a significant risk to data confidentiality, integrity, and availability. In a corporate environment, the exploitation of this vulnerability could lead to data breaches, loss of intellectual property, and damage to the organization’s reputation. Furthermore, the existence of targeted attacks against specific individuals suggests that high-profile users, such as executives or key personnel, may be at greater risk, amplifying the potential consequences for businesses that fail to address this vulnerability promptly.

To detect and mitigate the risks associated with this vulnerability, organizations should prioritize timely updates and patch management. Apple has released updates across its product lines to address this issue, and users are strongly encouraged to apply these updates immediately. Regularly monitoring and auditing systems for compliance with the latest security patches can significantly reduce the risk of exploitation. Additionally, implementing robust security practices, such as web filtering and user education on safe browsing habits, can further mitigate the risk of encountering malicious content. Employing intrusion detection systems may also help identify and respond to suspicious activities indicative of exploitation attempts.

In conclusion, the use-after-free vulnerability affecting various Apple products represents a serious threat to both individual users and organizations. The potential for arbitrary code execution through malicious web content highlights the importance of vigilant security practices, timely software updates, and user awareness. By understanding the technical details, attack vectors, and real-world implications of this vulnerability, stakeholders can better prepare to defend against potential exploits and safeguard their digital environments.

CSURFACE threat intelligence has identified a moderate increase in the Exploit Prediction Scoring System (EPSS) score for CVE-2025-43529, rising by approximately 40% to 0.0018. This uptick, coupled with a steady upward trend over the past week, signals growing interest and potential exploitation attempts in the wild. Concurrently, new proof-of-concept exploits and detailed technical analyses have surfaced on public repositories, enhancing adversaries’ ability to weaponize this use-after-free vulnerability in Apple Safari and related platforms. While the overall exploit activity remains below a critical threshold, the combination of increased EPSS and the availability of exploit code lowers the barrier for threat actors to conduct targeted attacks, especially against high-value individuals. This development elevates the threat level from moderate to heightened vigilance, underscoring the need for defenders to monitor for exploitation attempts closely and prioritize relevant patching efforts.

Update 2 — June 19, 2026

CSURFACE threat intelligence has detected a marked escalation in exploitation attempts targeting CVE-2025-43529, accompanied by a substantial surge in the Exploit Prediction Scoring System (EPSS) score. This increase correlates with the emergence of new proof-of-concept exploits publicly available on multiple platforms, which demonstrate advanced capabilities including kernel-level read/write access and complex exploit chaining with related vulnerabilities. Our telemetry indicates that adversaries are rapidly adopting these tools, lowering the technical barrier to weaponize this use-after-free flaw in Apple Safari and associated operating systems. This shift significantly broadens the exploit landscape, suggesting a transition from isolated, highly targeted attacks to a more widespread threat environment. Consequently, the risk level has escalated from moderate to high, reflecting both the increased likelihood of exploitation and the potential impact on high-value targets. Defenders should recognize this evolving threat posture as indicative of growing adversary interest and capability, warranting heightened monitoring and prioritization of patch deployment.