Dashboard / CVE-2026-93524

CVE-2026-93524

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 39/100
Published: 2026-10-28 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

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

Description

A buffer overread in CheckKeySyms() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to leak small amounts of information from X server memory or potentially crash the X server.

Weakness Classification (1)

Affected Software (4)

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

References & Advisories (1)

Bug Bounty Relevance

39 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.18%
Raw Score 0.001770
Percentile 7.2%
Date 2026-10-29

Intelligence Sources

mitre ref →
nvd ref →

External Links