CVE-2026-86950

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1. Processing a maliciously crafted file 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 27.

CVSS Vector

Affected Products

References

• https://support.apple.com/en-us/149226
• https://support.apple.com/en-us/149228
• https://support.apple.com/en-us/149229
• http://seclists.org/fulldisclosure/2026/Sep/89
• http://seclists.org/fulldisclosure/2026/Sep/90
• http://seclists.org/fulldisclosure/2026/Sep/91
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950