CVE-2026-73473: Gst plugins good1.0 · A flaw was found in GStreamer gst-plugins-good (avidemux)
Affects gst-plugins-good1.0Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 11 Nov 2026, 13:10 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 5.5 |
|---|
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 6 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 11 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSgst-plugins-good1.0pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgst-plugins-good1.0pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSgst-plugins-good1.0pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu Pro 20.04 LTSgst-plugins-good1.0pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=esm-infra/focalOther threats | Affected
| Fixed in– |
Ubuntu Pro 18.04 LTSgst-plugins-good1.0pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=esm-infra/bionicOther threats | Affected
| Fixed in– |
Ubuntu Pro 16.04 LTSgst-plugins-good1.0pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=esm-infra-legacy/xenialOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available upstream in gst-plugins-good version 1.28.6. Users and vendors should upgrade to this version or later to remediate the vulnerability. No additional mitigation is required if the fixed version is deployed.
Description
A vulnerability in GStreamer's gst-plugins-good (avidemux) subindex parser allows excessive memory allocation due to missing validation of the entry count. This can lead to denial of service (DoS) by crashing or terminating the process when opening or previewing a crafted AVI file. The issue affects versions prior to 1.28.6, where it has been fixed.
References
- ubuntu.com/security/CVE-2026-73473 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-73473 (opens in a new tab)
- gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231 (opens in a new tab)
- gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12241 (opens in a new tab)
- gstreamer.freedesktop.org/security/sa-2026-0072.html (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-73473 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2514915 (opens in a new tab)