What is GHSA-ggcw-m5qm-2p57?

GHSA-ggcw-m5qm-2p57 is a security advisory published by GitHub Security Advisories with Critical severity. A buffer overflow was addressed with improved size validation. This issue is fixed in macOS...

Which CVE IDs does GHSA-ggcw-m5qm-2p57 cover?

GHSA-ggcw-m5qm-2p57 covers the following CVE IDs: CVE-2026-84520. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-ggcw-m5qm-2p57?

GHSA-ggcw-m5qm-2p57 has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-ggcw-m5qm-2p57CriticalCVSS 9.8

A buffer overflow was addressed with improved size validation. This issue is fixed in macOS...

Vendor

GitHub Security Advisories

Published

September 14, 2026

Last Modified

September 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-84520 →

📋 Description

A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Golden Gate 27. A local attacker may be able to cause unexpected system termination or corrupt kernel memory.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-84520
https://support.apple.com/en-us/149035
https://github.com/advisories/GHSA-ggcw-m5qm-2p57