CVSS 5.9 (medium) · published 2026-10-20
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 (NVD): apple macos
Fixed in (NVD): 15.8, 26.7
Weakness: CWE-20, CWE-190
Source: NVD CVE-2026-86871
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