CVE-2025-49177
mediumA flaw was found in the XFIXES extension.
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.
CVSS
6.1
6.1 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L Severity source: NVD CVSS v3.1 (secalert@redhat.com)
Timeline (UTC)
Published: 2025-06-17 15:15
Modified: 2026-11-04 22:17
NVD status: Deferred
Last synced 4 hours ago
Verified against the source API 2026-11-04 22:37 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://access.redhat.com/errata/RHSA-2025:10258 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2025:9303 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2025:9304 secalert@redhat.com
- https://access.redhat.com/security/cve/CVE-2025-49177 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2369955 secalert@redhat.com
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/ab02fb96b1c701c3bb47617d965522c34befa... secalert@redhat.com
- https://www.x.org/wiki/Development/Security/ secalert@redhat.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-04 22:37 UTC · record ↗