Unrated severityNVD Advisory· Published Oct 20, 2026

CVE-2026-86871

Description

An integer underflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker with control of a network file server may be able to cause unexpected system termination.

Affected products

Apple Inc./macOSllm-fuzzy
Range: Golden Gate 27, Sequoia 15.8, Tahoe 26.7

Patches

Vulnerability mechanics

References

support.apple.com/en-us/149035nvd
support.apple.com/en-us/149042nvd
support.apple.com/en-us/149043nvd

News mentions

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