CVE-2025-43529

A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 26.2, Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2, tvOS 26.2. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 was also issued in response to this report.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Potential Mitigations

References

• https://support.apple.com/en-us/125884
• https://support.apple.com/en-us/125885
• https://support.apple.com/en-us/125886
• https://support.apple.com/en-us/125889
• https://support.apple.com/en-us/125890
• https://support.apple.com/en-us/125891
• https://support.apple.com/en-us/125892
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43529