What is GHSA-rvwc-q536-w2gj?

GHSA-rvwc-q536-w2gj is a security advisory published by GitHub Security Advisories with High severity. Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code...

Which CVE IDs does GHSA-rvwc-q536-w2gj cover?

GHSA-rvwc-q536-w2gj covers the following CVE IDs: CVE-2026-77898. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-rvwc-q536-w2gj?

GHSA-rvwc-q536-w2gj has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-rvwc-q536-w2gjHighCVSS 7.5

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code...

Vendor

GitHub Security Advisories

Published

September 8, 2026

Last Modified

September 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-77898 →

📋 Description

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-77898
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77898
https://github.com/advisories/GHSA-rvwc-q536-w2gj