CVE-2025-49177

MEDIUM

xwayland < 24.1.7 - Exposure of Sensitive Information via XFIXES Extension Request Length Validation

Title source: llm
STIX 2.1

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.

References (7)

Core 7
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:10258
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:9303
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:9304
Vendor Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2025-49177
Issue Tracking issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2369955

Scores

CVSS v3 6.1
EPSS 0.0009
EPSS Percentile 24.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-200
Status published
Products (9)
Red Hat/Red Hat Enterprise Linux 10 0:24.1.5-4.el10_0
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Enterprise Linux 7
Red Hat/Red Hat Enterprise Linux 8
Red Hat/Red Hat Enterprise Linux 9
Red Hat/Red Hat Enterprise Linux 9 0:1.20.11-31.el9_6
Red Hat/Red Hat Enterprise Linux 9 0:23.2.7-4.el9_6
Red Hat/Red Hat Enterprise Linux 9.4 Extended Update Support 0:22.1.9-6.el9_4
X.Org/xwayland < 24.1.7
Published Jun 17, 2025
Tracked Since Feb 18, 2026