Dashboard / CVE-2026-93521

CVE-2026-93521

HIGH
MEDIUM Priority: 0.02 BB Relevance: 41/100
Published: 2026-10-28 Modified: 2026-10-29 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
S: Unchanged
C: High
I: High
A: High

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.

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

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.20%
Raw Score 0.002020
Percentile 10.2%
Date 2026-10-29

Intelligence Sources

mitre ref →
nvd ref →

External Links