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VulnerabilityPublished

CVE-2026-125041: GStreamer's gst-plugins-good MOV/MP4 demuxer · CWE-1284

Source GCVE Database

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Authoritative record:CVE-2026-125041· Medium 5.5

Not known to be exploited · CVSS 5.5 Medium : upgrade the Red Hat redhat/gst-plugins-good package to 1.28.3 when convenient.

Data as of 9 Nov 2026, 22:20 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.15.5
Patch
Available – fixed in 1.28.3
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Upgrade the Red Hat redhat/gst-plugins-good package to 1.28.3.

Affected software

ProductAffectedFixed in
Red Hatredhat/gst-plugins-goodpkg:rpm/redhat/gst-plugins-goodOther threatsAffected
  • <1.28.3
Fixed in
  • 1.28.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

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.

References

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