What is GHSA-5xx3-f8cq-vgc3?

GHSA-5xx3-f8cq-vgc3 is a security advisory published by GitHub Security Advisories with High severity. Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to...

Which CVE IDs does GHSA-5xx3-f8cq-vgc3 cover?

GHSA-5xx3-f8cq-vgc3 covers the following CVE IDs: CVE-2026-65663. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-5xx3-f8cq-vgc3?

GHSA-5xx3-f8cq-vgc3 has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-5xx3-f8cq-vgc3HighCVSS 8.8

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to...

Vendor

GitHub Security Advisories

Published

August 11, 2026

Last Modified

August 11, 2026

🔗 CVE IDs covered (1)

CVE-2026-65663 →

📋 Description

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-65663
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65663
https://github.com/advisories/GHSA-5xx3-f8cq-vgc3