What is CVE-2026-125041?

CVE-2026-125041 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Improper Validation of Specified Quantity in Input. CVSS score: 5.5/10. Published 2026-11-09.

How severe is CVE-2026-125041?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Red Hat Enterprise Linux 10

CVE-2026-125041

A flaw was found in GStreamer's gst-plugins-good MOV/MP4 demuxer. When processing an uncompressed video track, qtdemux fails to validate the declared row alignment and chroma geometry before using them to build a video buffer layout. A crafted file can cause an out-of-bounds heap read while the sample is copied, potentially crashing the application and causing denial of service.

Published 2026-11-09 · last modified 2026-11-09.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-1284 — Improper Validation of Specified Quantity in Input

References

access.redhat.com/security/cve/CVE-2026-125041 (vdb-entry)
bugzilla.redhat.com/show_bug.cgi (issue-tracking)
gstreamer.freedesktop.org/security/sa-2026-0025.html

Frequently asked questions

What is CVE-2026-125041?: CVE-2026-125041 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Improper Validation of Specified Quantity in Input. CVSS score: 5.5/10. Published 2026-11-09.
How severe is CVE-2026-125041?: Medium severity. CVSS v3 base score is 5.5 out of 10.