CVE-2026-125712: Gst plugins base1.0 · A flaw was found in GStreamer's gst-plugins-base RTCP SDES packet parser
Affects gst-plugins-base1.0Source GCVE Database
Not known to be exploited · CVSS 7.5 High : patch gst-plugins-base1.0 soon.
Data as of 13 Nov 2026, 22:31 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 7.5 |
|---|
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 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 13 Nov 2026.
What to do
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSgst-plugins-base1.0pkg:deb/ubuntu/gst-plugins-base1.0?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgst-plugins-base1.0pkg:deb/ubuntu/gst-plugins-base1.0?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSgst-plugins-base1.0pkg:deb/ubuntu/gst-plugins-base1.0?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu Pro 20.04 LTSgst-plugins-base1.0pkg:deb/ubuntu/gst-plugins-base1.0?arch=source&distro=esm-infra/focalOther threats | Affected
| Fixed in– |
Ubuntu Pro 18.04 LTSgst-plugins-base1.0pkg:deb/ubuntu/gst-plugins-base1.0?arch=source&distro=esm-infra/bionicOther threats | Affected
| Fixed in– |
Ubuntu Pro 16.04 LTSgst-plugins-base1.0pkg:deb/ubuntu/gst-plugins-base1.0?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 security update is available from Red Hat for Red Hat Enterprise Linux 8 that addresses this vulnerability by adding missing bounds checks in the RTCP SDES packet parser. Users should apply the update as described in the Red Hat advisory RHSA-2026:99012. No additional mitigation actions are indicated by the vendor.
Description
A vulnerability in GStreamer's gst-plugins-base RTCP SDES packet parser allows a remote sender to supply a malformed SDES entry with a declared length exceeding the packet size. This missing bounds validation can cause the receiver to read beyond the packet buffer, potentially crashing the application or exposing a limited amount of process memory. The issue affects multiple versions of gst-plugins-base1.0 and has a CVSS score of 7.5, indicating high severity. Red Hat has released security updates addressing this flaw in their Enterprise Linux 8 distribution.
References
- ubuntu.com/security/CVE-2026-125712 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-125712 (opens in a new tab)
- gstreamer.freedesktop.org/security/sa-2026-0030.html (opens in a new tab)
- gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11791 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:99012 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:99126 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:99128 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-125712 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2569130 (opens in a new tab)