What is GHSA-8q64-4f7g-q2rf?

GHSA-8q64-4f7g-q2rf is a security advisory published by GitHub Security Advisories with High severity. A buffer overflow in RandR ChangeProviderProperty requests in X.Org X Server before 2.1.25 and...

Which CVE IDs does GHSA-8q64-4f7g-q2rf cover?

GHSA-8q64-4f7g-q2rf covers the following CVE IDs: CVE-2026-93521. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-8q64-4f7g-q2rf?

GHSA-8q64-4f7g-q2rf has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-8q64-4f7g-q2rfHighCVSS 7.8

A buffer overflow in RandR ChangeProviderProperty requests in X.Org X Server before 2.1.25 and...

Vendor

GitHub Security Advisories

Published

October 28, 2026

Last Modified

October 28, 2026

🔗 CVE IDs covered (1)

CVE-2026-93521 →

📋 Description

A buffer overflow in RandR ChangeProviderProperty requests in X.Org X Server before 2.1.25 and XWayland before 24.4.14 could be used by authenticated X clients to crash or execute code within the X server context.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-93521
https://gitlab.freedesktop.org/xorg/xserver/-/commit/5dc9efd5a199717b53f70b9c6cd336a522370e46
https://github.com/advisories/GHSA-8q64-4f7g-q2rf