Description
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.
Metrics
CVSS 3.1 8.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Apple | iOS and iPadOS | < 26.7.1 |
| Apple | macOS | < 15.8.1; < 26.7.1 |
References
- https://support.apple.com/en-us/149226Release Notes, Vendor Advisory
- https://support.apple.com/en-us/149228Release Notes, Vendor Advisory
- https://support.apple.com/en-us/149229Release Notes, Vendor Advisory
- http://seclists.org/fulldisclosure/2026/Sep/89Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2026/Sep/90Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2026/Sep/91Mailing List, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950US Government Resource
Timeline
- Published
- Sep 28, 2026
- Last modified
- Oct 27, 2026
- Added to CISA KEV
- Sep 29, 2026
- NVD status
- Analyzed