Vulnerability record/PUBLISHED/Published Jun 17, 2025 14:49:49 UTC

CVE-2025-49177

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.

Base score6.1/ 10

SeverityMediumCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityMedium

Attack vectorLocalAV

Attack complexityLowAC

Privileges requiredLowPR

User interactionNoneUI

ScopeUnchangedS

Confidentiality impactHighC

Integrity impactNoneI

Availability impactLowA

CVSS vector stringCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering Authorityredhat

Last updatedNov 4, 2026 21:35:45 UTC

PublishedJun 17, 2025 14:49:49 UTC

ReservedJun 3, 2025 05:38:02 UTC

Credits

Red Hat would like to thank Julian Suleder and Nils Emmerich for reporting this issue.