What is GHSA-823q-6xj3-q5gp?

GHSA-823q-6xj3-q5gp is a security advisory published by GitHub Security Advisories with Medium severity. Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information locally.

Which CVE IDs does GHSA-823q-6xj3-q5gp cover?

GHSA-823q-6xj3-q5gp covers the following CVE IDs: CVE-2026-77491. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-823q-6xj3-q5gp?

GHSA-823q-6xj3-q5gp has a CVSS v3 base score of 5.5, published by GitHub Security Advisories.

GHSA-823q-6xj3-q5gpMediumCVSS 5.5

Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information locally.

Vendor

GitHub Security Advisories

Published

September 8, 2026

Last Modified

September 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-77491 →

📋 Description

Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information locally.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-77491
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77491
https://github.com/advisories/GHSA-823q-6xj3-q5gp