CVE-2026-86950
Apple Multiple Products Out-of-Bounds Write Vulnerability
Apple·Multiple Products
- Added
- Sep 29, 2026
- Fix due
- Oct 13, 2026
- Ransomware
- Not known
- Published
- Sep 28, 2026
- Updated
- Oct 26, 2026
- First covered
- Sep 30, 2026
- Latest story
- 1 month ago
Summary
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.11 and iPadOS 18.7.11, 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.
CWE-787Out-of-bounds Write
Attack profile
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCISA required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Affected products
- Apple iOS and iPadOSbefore 18.7.11before 26.7.1
- Apple macOSbefore 15.8.1before 26.7.1