NULL pointer dereference in gst-plugins-bad H.264 parser
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
The gst-plugins-bad H.264 video parser in GStreamer affects Red Hat Enterprise Linux 7, 8, 9 and 10, while Red Hat Enterprise Linux 6 is listed as not affected. The parser dereferences a NULL pointer while cleaning up partially allocated structures after it fails to parse malformed Multiview (MVC) Sequence Parameter Set data (CWE-476). A user must open or receive a crafted H.264 video file or network stream, which crashes the application using GStreamer and causes a denial of service.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Description from the CNA
A flaw was found in the H.264 video parser in gst-plugins-bad. When processing a specially crafted H.264 video file or network stream with malformed Multiview (MVC) Sequence Parameter Set data, the parser can dereference a NULL pointer during the cleanup of partially allocated internal structures after a parse failure. This can cause the application using GStreamer to crash, resulting in a denial of service.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | No fix listed | CNA |
- Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Red Hat Enterprise Linux 7, 8, 9 or 10. Red Hat lists no available plan for these products.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-30 Threatist record created from CVE-2026-119728
- 2026-10-30 CISA SSVC decision points changed
- 2026-10-30 Priority changed: MEDIUM → LOW
- 2026-10-30 Alias added: GHSA-r374-jvgj-7922
- 2026-11-03 Fix available: GStreamer project/[email protected] · CNA
- 2026-11-03 CVSS score changed · Red Hat
- 2026-11-03 CVSS score changed · CNA
- 2026-11-03 Affected versions changed · CNA
References
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Sources
- CVE-2026-119728 · CVE Program
- CVE-2026-119728 · NVD
- FIRST EPSS
- GHSA-r374-jvgj-7922 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-119728 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences