Dashboard / CVE-2026-93517

CVE-2026-93517

HIGH
MEDIUM Priority: 0.02 BB Relevance: 42/100
Published: 2026-10-28 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
AT: None
VC: High
VI: High
VA: High

Description

A heap buffer overflow in handling GLX RenderLarge request where dataBytes exceeds cmdlen in X.org X server before 21.1.25 and XWayland before 24.1.14 that could be be triggered by an authenticated X client could cause crashes or code execution in X server context.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
x.org xwayland 0 < 24.1.14
x.org xwayland 0 < 24.1.14
x.orgg xorg-x11-server 0 < 21.1.25
x.orgg xorg-x11-server 0 < 21.1.25

References & Advisories (1)

Bug Bounty Relevance

42 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

8.5 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.19%
Raw Score 0.001930
Percentile 9.0%
Date 2026-10-29

Intelligence Sources

mitre ref →
nvd ref →

External Links