CVE-2026-86950
- State
- Published
- Severity
- 8.8 High
- Published
- Sep 28, 2026
- Updated
- Oct 26, 2026
- Reserved
- Sep 8, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
iOS and iPadOSApple |
|
macOSApple |
|
References
- https://support.apple.com/en-us/149225
- https://support.apple.com/en-us/149226
- https://support.apple.com/en-us/149228
- https://support.apple.com/en-us/149229
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950government-resource
- http://seclists.org/fulldisclosure/2026/Sep/89
- http://seclists.org/fulldisclosure/2026/Sep/90
- http://seclists.org/fulldisclosure/2026/Sep/91
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