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Vulnerabilities

Vulnerability · CVE-2026-12892

A flaw was found in GStreamer's gst-plugins-bad package.

Published Jun 23, 2026 · catalog updated Oct 16, 2026 · A flaw was found

Check if you run it

No confirmed exploitation is on record for CVE-2026-12892. EPSS is 0.16%. Act only if a listed version of A flaw was found is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A flaw was found).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.16%
Remediation
Advisory link
Affected products
Debian:12 gst-plugins-bad1.0 · Debian:13 gst-plugins-bad1.0 · Debian:14 gst-plugins-bad1.0

A flaw was found in GStreamer's gst-plugins-bad package. When processing a specially crafted H.264 video file containing malformed MVC or SVC extension slice NAL units, a 1-byte heap out-of-bounds read can occur during parsing. This happens when the parser attempts to check slice boundary information without first verifying that the NAL unit contains enough data beyond the extension header. An attacker could exploit this by tricking a user into opening a malicious H.264 video file, potentially causing the application to crash or leak a single byte of heap memory.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:12 gst-plugins-bad1.00 → 1.22.0-4+deb12u8
  • Debian:13 gst-plugins-bad1.00 → 1.26.2-3+deb13u3
  • Debian:14 gst-plugins-bad1.00 → 1.28.5-1

How to fix CVE-2026-12892

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-12892. EPSS is 0.16%. Act only if a listed version of A flaw was found is installed.

Which versions are affected?

Compare what you have installed with 0 → 1.22.0-4+deb12u8, 0 → 1.26.2-3+deb13u3, 0 → 1.28.5-1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.16%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 23, 2026 · OpenSSF OSV / OSV Scanner

    Detected

    A flaw was found in GStreamer's gst-plugins-bad package. When processing a specially crafted H.264 video file containing malformed MVC or SVC extension slice NAL units, a 1-byte heap out-of-bounds read can occur during parsing. This happens when the parser attempts to check slice boundary information without first verifying that the NAL unit contains enough data beyond the extension header. An att

  2. Oct 16, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    gst-plugins-bad1.0 fixed in 1.22.0-4+deb12u8; gst-plugins-bad1.0 fixed in 1.26.2-3+deb13u3; gst-plugins-bad1.0 fixed in 1.28.5-1

  3. Oct 16, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    gst-plugins-bad1.0 fixed in 1.22.0-4+deb12u8

  4. Oct 16, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    gst-plugins-bad1.0 fixed in 1.26.2-3+deb13u3

  5. Oct 16, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    gst-plugins-bad1.0 fixed in 1.28.5-1

  6. Oct 16, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    A flaw was found in GStreamer's gst-plugins-bad package. When processing a specially crafted H.264 video file containing malformed MVC or SVC extension slice NAL units, a 1-byte heap out-of-bounds read can occur during parsing. This happens when the parser attempts to check slice boundary information without first verifying that the NAL unit contains enough data beyond the extension header. An att

Sources

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.