Medium severity5.2NVD Advisory· Published Sep 14, 2026· Updated Sep 14, 2026

CVE-2026-86876

Description

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 products

Apple Inc./iOSllm-fuzzy
Range: 26.7, 27
Apple Inc./macOSllm-fuzzy
Range: Golden Gate 27, 15.8, 26.7
Apple Inc./Visionosllm-fuzzy
Range: 27
Apple Inc./watchOSllm-fuzzy
Range: 27

Patches

Vulnerability mechanics

References

support.apple.com/en-us/149034nvd
support.apple.com/en-us/149035nvd
support.apple.com/en-us/149037nvd
support.apple.com/en-us/149038nvd
support.apple.com/en-us/149041nvd
support.apple.com/en-us/149042nvd
support.apple.com/en-us/149043nvd

News mentions

Apple Updates Everything, (Mon, Sep 14th)
SANS Internet Storm Center · Sep 14, 2026

cvss	0.338
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000