CVE-2026-125041: GStreamer's gst-plugins-good MOV/MP4 demuxer · CWE-1284
Source GCVE Database
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
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 5.5 |
|---|
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 9 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
Red Hatredhat/gst-plugins-goodpkg:rpm/redhat/gst-plugins-goodOther threats | Affected
| Fixed in
|
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.