CVE-2025-49177

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 37/100
Published: 2025-06-17 Modified: 2026-11-04 First seen: 2026-11-04 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: None
A: Low

Description

A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests.

Affected Software (1)

VendorProductVersion
X.Org xwayland 0 < 24.1.7

Bug Bounty Relevance

37 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

6.1 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L

EPSS — Exploitation Probability

0.46%
Raw Score 0.004590
Percentile 40.3%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00459
2026-11-12
0.00440
2026-11-10
0.00440
2026-11-09
0.00440
2026-11-08
0.00440
2026-11-07
0.00440
2026-11-06
0.00440
2026-11-05
0.00440
2026-11-04
0.00440

Intelligence Sources

mitre ref →
nvd ref →