CVE-2025-43210 is a medium-severity vulnerability affecting various Apple products, including iOS and macOS. This vulnerability allows for out-of-bounds access due to insufficient bounds checking, which can lead to unexpected app termination or corrupt process memory when processing maliciously crafted media files. The CVSS score for this vulnerability is 6.3, indicating a medium severity level that warrants attention from organizations relying on affected systems.
The vulnerability was published on April 2, 2026, and it affects multiple Apple products, including iPadOS, macOS Sequoia, and watchOS. As it stands, this vulnerability is not actively exploited in the wild, but it presents a risk to organizations that fail to apply the necessary patches. Users are urged to update their systems to the latest versions to mitigate the associated risks.
Organizations should prioritize patching immediately, especially those utilizing iOS 18.6, iPadOS 18.6, or earlier versions. The risk to organizations includes potential unauthorized access and data corruption, emphasizing the need for swift remediation.
To aid in understanding and addressing this vulnerability, organizations should review the associated release notes provided by Apple for detailed patch information and further context on the vulnerabilities.
Vulnerability Details
The official description of CVE-2025-43210 states: 'An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 18.6 and iPadOS 18.6, iPadOS 17.7.9, macOS Sequoia 15.6, macOS Sonoma 14.7.7, macOS Ventura 13.7.7, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing a maliciously crafted media file may lead to unexpected app termination or corrupt process memory.'
This vulnerability has been classified under CWEs CWE-125 (Out-of-bounds Read) and CWE-787 (Out-of-bounds Write), which further illustrates the nature of the issue. The CVSS score of 6.3 categorizes this vulnerability as having a medium severity level, reflecting the potential impact on confidentiality, integrity, and availability.
The affected products include iPadOS, iPhone OS, macOS, tvOS, visionOS, and watchOS. Organizations utilizing any of these operating systems should be aware of the risk and act accordingly.
Technical Analysis
The root cause of this vulnerability stems from inadequate bounds checking, leading to out-of-bounds access when handling specific media files. The attack vector for this vulnerability is through the network, with a low attack complexity. No privileges are required to exploit this vulnerability, although user interaction is necessary.
In terms of impacts, the vulnerability has low confidentiality, integrity, and availability impacts, but successful exploitation could lead to unexpected termination of applications and potential data corruption.
Risk & Impact Analysis
Risk to organizations includes the possibility of unexpected app termination and corrupt process memory when processing malicious media files. Although the vulnerability does not currently have known exploits, potential attackers could leverage this vulnerability to disrupt services or corrupt data.
Organizations should address this vulnerability in their priority patch cycle, particularly for affected systems to prevent any possible exploitation. The urgency stems from the potential for unauthorized access and service disruptions.
An understanding of the blast radius potential is crucial, as this vulnerability may impact multiple products within the Apple ecosystem, thereby affecting a wide user base.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects the following versions: iOS 18.6, iPadOS 18.6, iPadOS 17.7.9, macOS Sequoia 15.6, macOS Sonoma 14.7.7, macOS Ventura 13.7.7, tvOS 18.6, visionOS 2.6, and watchOS 11.6. Organizations should ensure that their systems are updated to these versions or later to mitigate risks.
Mitigation & Remediation
To remediate this vulnerability, organizations should immediately update to the latest versions of affected products. If a patch is unavailable, consider applying workarounds or implementing configuration hardening. For more comprehensive security, organizations may consider leveraging penetration testing to identify and address similar vulnerabilities in their systems.
Detection Guidance
Organizations should monitor logs for unusual application behavior and potential indicators of compromise related to this vulnerability. Behavioral anomalies, such as unexpected application crashes or memory corruption, should be investigated thoroughly.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-43210 highlights the ongoing risks associated with out-of-bounds access vulnerabilities. This incident serves as a reminder for security teams to enhance their testing and validation processes to address potential weaknesses proactively. Organizations should take lessons from this vulnerability to improve defensive measures and consider adopting best practices for secure software development.
For further insights into application security, organizations may explore resources on vulnerability management and penetration testing methodology to further strengthen their security posture.
Regularly reviewing and updating security protocols can help organizations stay resilient against evolving threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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