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: macos
References3
- support.apple.com/en-us/149035 Vendor AdvisoryRelease Notes
- support.apple.com/en-us/149042 Vendor AdvisoryRelease Notes
- support.apple.com/en-us/149043 Vendor AdvisoryRelease Notes
Metrics
- CVSS 3.1
-
5.9
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 42 · as of 9 November 2026
- CWE
- CWE-20CWE-190
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.