CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HCVE-2026-125041 red hat
Medium (5.5) in red hat. EPSS 0.1% estimated probability of exploitation activity in the next 30 days.
On this page
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.
Severity
- EPSS
- 0.1% estimated probability of exploitation activity in the next 30 days; 2nd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: partial, assessed 2026-11-10. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-1284 Improper Validation of Specified Quantity in Input
- Published
- Modified
- Assigned by
- redhat (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
- red hat:red hat enterprise linux 10
- red hat:red hat enterprise linux 7
- red hat:red hat enterprise linux 8
- red hat:red hat enterprise linux 9
Fix and patched versions
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Debian | 12, 13 | gst-plugins-good1.0 | no fix listed | DEBIAN-CVE-2026-125041 |
| Debian | 14 | gst-plugins-good1.0 | 1.28.3-1 | DEBIAN-CVE-2026-125041 |
| Ubuntu | 22.04:LTS, 24.04:LTS, 26.04:LTS and 4 more | gst-plugins-good1.0 | no fix listed | UBUNTU-CVE-2026-125041 |
From the distributions' data via OSV.dev: the Debian Security Tracker; Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian · Ubuntu.
Red Hat
Red Hat rates this Moderate.
Static review of gst-plugins-good 1.28.2 found a reachable buffer layout inconsistency in qtdemux that can cause an out-of-bounds heap read. The review did not run a proof of concept or compare the fixed 1.28.3 source, so verification remains partial. Red Hat product exposure remains unassessed.
Update gst-plugins-good to version 1.28.3 or later. Where updating is not yet possible, avoid processing untrusted MOV/MP4 files with qtdemux; deployments that do not need MOV/MP4 support can disable the isomp4 plugin.
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | gstreamer1-plugins-good | Fix deferred | |
| Red Hat Enterprise Linux 7 | gstreamer1-plugins-good | Fix deferred | |
| Red Hat Enterprise Linux 8 | gstreamer1-plugins-good | Fix deferred | |
| Red Hat Enterprise Linux 9 | gstreamer1-plugins-good | Fix deferred |
Contains Red Hat Security Data © Red Hat, Inc., licensed under CC BY 4.0. Source: https://access.redhat.com/security/data. Modified: reformatted. Red Hat's page for CVE-2026-125041.