CVE-2025-43202 is a high-severity vulnerability affecting Apple’s operating systems, specifically iOS, iPadOS, and macOS. This vulnerability allows for memory corruption when processing a file, which can lead to severe consequences such as unauthorized data access or system instability. The CVSS score of 8.8 indicates a significant risk to users and organizations relying on these platforms.
Given that this vulnerability can be exploited over a network with low attack complexity, it is crucial for organizations to understand the implications of this flaw. User interaction is required to trigger the vulnerability, which may further complicate mitigation strategies but does not reduce the urgency of addressing it.
The severity of this vulnerability cannot be overstated. Organizations should prioritize patching immediately to protect their systems from potential exploitation. Apple has released updates in iOS 18.6, iPadOS 18.6, and macOS Sequoia 15.6 to remediate this issue.
As of now, there are no known exploits for this vulnerability, but the risk remains high due to its nature and the potential for attackers to leverage it. Security teams must remain vigilant and proactive in their response.
Vulnerability Details
This issue was addressed with improved memory handling. This issue is fixed in iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6. Processing a file may lead to memory corruption.
CVE-2025-43202 has a CVSS score of 8.8, classified as high severity. This score reflects the potential impact on confidentiality, integrity, and availability, each rated as high, indicating that successful exploitation could lead to significant data loss or compromise.
The affected products are iOS, iPadOS, and macOS, with the vulnerability impacting all versions prior to the vendor patch. The issue was published on April 2, 2026.
The vulnerability is classified under CWE-787, which pertains to out-of-bounds write issues, further emphasizing the need for robust input validation in software development.
Technical Analysis
The root cause of CVE-2025-43202 is related to improper memory handling within the affected Apple operating systems. An attacker can exploit this vulnerability by processing a specially crafted file, which may lead to memory corruption and subsequent control over the system's execution flow.
The attack vector is network-based, and the complexity is rated as low, meaning that it does not require significant skill to exploit. Additionally, no privileges are required to initiate the attack, although user interaction is necessary, which may involve opening a malicious file.
The confidentiality, integrity, and availability impacts are all rated as high. Attackers may leverage this vulnerability to gain unauthorized access to sensitive information, alter data, or disrupt service availability.
Risk & Impact Analysis
Risk to organizations includes the potential for significant data breaches, loss of user trust, and financial repercussions associated with remediation efforts and potential legal liabilities. The blast radius for this vulnerability could be extensive, especially for organizations using Apple’s ecosystem widely.
Given the severity of the CVSS score, organizations should address in priority patch cycle. Additionally, the existence of user interaction required for exploitation does not mitigate the need for swift action, as social engineering tactics could be employed to trick users into triggering the vulnerability.
Monitoring for unusual activity, particularly involving file processing and memory access patterns, should be prioritized to detect potential exploitation attempts. The urgency is compounded by the fact that the vulnerability is present in widely used OS versions.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include all versions of iOS, iPadOS prior to 18.6 and macOS prior to 15.6. Organizations using these systems should confirm their versions and apply the necessary updates.
Mitigation & Remediation
Apple has released patches for this vulnerability in the latest versions of iOS, iPadOS, and macOS. Organizations should prioritize applying these updates immediately to mitigate the risks associated with this vulnerability.
In addition to patching, organizations should consider implementing additional security measures such as user training on recognizing suspicious files and monitoring for unusual activity related to file processing.
For a comprehensive approach, organizations may benefit from engaging in penetration testing to identify vulnerabilities in their systems.
Detection Guidance
Organizations should monitor logs for any indicators of suspicious file processing activity. Behavioral anomalies or system crashes following file processing should also be investigated promptly.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-43202 lies in its demonstration of the risks associated with memory handling in widely used operating systems. The trend of vulnerabilities related to memory corruption highlights the critical need for secure coding practices.
Security teams should implement lessons learned from this incident to strengthen their applications against similar vulnerabilities. Regular code reviews and security audits can play a pivotal role in reducing exposure.
For further insights on vulnerability management, organizations can refer to the following resources: vulnerability management program, penetration testing methodology, and API penetration testing guide to further enhance their security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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