CVE-2026-86876
published 2026-09-14CVE-2026-86876: 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…
PriorityP423medium5.2CVSS 3.1
AVLACLPRLUINSCCLILAN
EPSS
0.15%
4.2th percentile
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
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_and_ipados | < 26.7 | 26.7 |
| apple | ios_and_ipados | < 27 | 27 |
| apple | ipados | < 26.7 | 26.7 |
| apple | iphone_os | < 26.7 | 26.7 |
| apple | macos | < 15.8 | 15.8 |
| apple | macos | < 26.7 | 26.7 |
| apple | macos | < 27 | 27 |
| apple | macos | >= 15.0 < 15.8 | 15.8 |
| apple | macos | >= 26.0 < 26.7 | 26.7 |
| apple | visionos | < 27 | 27 |
| apple | visionos | < 27.0 | 27.0 |
| apple | watchos | < 27 | 27 |
| apple | watchos | < 27.0 | 27.0 |
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VulDB
Apple iPadOS/iOS/macOS/visionOS/watchOS prior 26.7/27/15.8 out-of-bounds write
vuldb·2026-09-15·CVSS 5.2
CVE-2026-86876 [MEDIUM] Apple iPadOS/iOS/macOS/visionOS/watchOS prior 26.7/27/15.8 out-of-bounds write
A vulnerability has been found in Apple iPadOS, iOS, macOS, visionOS and watchOS and classified as problematic. Affected by this issue is some unknown functionality. This manipulation causes out-of-bounds write.
This vulnerability is tracked as CVE-2026-86876. The attack is restricted to local execution. No exploit exists.
The affected component should be upgraded.
GHSA
An out-of-bounds write issue was addressed with improved bounds checking.
ghsa_unreviewed·2026-09-14
CVE-2026-86876 [MEDIUM] CWE-787 An out-of-bounds write issue was addressed with improved bounds checking.
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.
No detection rules found.
No public exploits indexed.
2026-09-14
Published