AppleCVE-2026-86876
Apple iOS and iPadOS: out-of-bounds write
Medium5.2CVE-2026-86876 · Published Sep 14, 2026 · updated Sep 15, 2026
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27, watchOS 27. A sandboxed process may be able to circumvent sandbox restrictions.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| iOS and iPadOS Product | < 26.7 | 26.7 |
| < 27 | 27 | |
| macOS Product | < 15.8 | 15.8 |
| < 26.7 | 26.7 | |
| < 27 | 27 | |
| visionOS Product | < 27 | 27 |
| watchOS Product | < 27 | 27 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Severity from
- CISA (its enrichment of the CVE record)
- Weakness
- CWE-787
More Apple advisories
All Apple| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 14 | Apple macOS: path traversal | Medium5.5 | 14.8.8+1 more |
| Sep 14 | Apple iOS and iPadOS: out-of-bounds read | Medium5.5 | 27+2 more |
| Sep 14 | A privacy issue was addressed with improved state management | High7.5 | 26.7+2 more |
| Sep 14 | Apple iOS and iPadOS: improper access control | Medium5.5 | 27+2 more |
| Sep 14 | Apple macOS: protection mechanism failure | Medium4.4 | 27 |
| Sep 14 | Apple macOS: path traversal | Medium5.5 | 15.8+2 more |