What is GHSA-fxfm-5vqf-f3wr?

GHSA-fxfm-5vqf-f3wr is a security advisory published by GitHub Security Advisories with Medium severity. An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS...

Which CVE IDs does GHSA-fxfm-5vqf-f3wr cover?

GHSA-fxfm-5vqf-f3wr covers the following CVE IDs: CVE-2026-84509. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-fxfm-5vqf-f3wr?

GHSA-fxfm-5vqf-f3wr has a CVSS v3 base score of 6.5, published by GitHub Security Advisories.

GHSA-fxfm-5vqf-f3wrMediumCVSS 6.5

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS...

Vendor

GitHub Security Advisories

Published

September 14, 2026

Last Modified

September 17, 2026

🔗 CVE IDs covered (1)

CVE-2026-84509 →

📋 Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may lead to unexpected system termination.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-84509
https://support.apple.com/en-us/149035
https://support.apple.com/en-us/149042
https://support.apple.com/en-us/149043
https://github.com/advisories/GHSA-fxfm-5vqf-f3wr