CVE-2026-125712: GStreamer's gst-plugins-base RTCP SDES packet parser · Out-of-bounds Read
Source GCVE Database
Not known to be exploited · CVSS 7.5 High.
Data as of 10 Nov 2026, 14:34 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 10 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10gstreamer1-plugins-base | Affected– | Fixed in– |
| Red Hat Enterprise Linux 6gstreamer-plugins-base | Affected– | Fixed in– |
| Red Hat Enterprise Linux 7gstreamer1-plugins-base | Affected– | Fixed in– |
| Red Hat Enterprise Linux 7gstreamer-plugins-base | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8gstreamer1-plugins-base | Affected– | Fixed in– |
| Red Hat Enterprise Linux 9gstreamer1-plugins-base | Affected– | Fixed in– |
AI-suggested
A fix is available in Fedora 44, Rawhide, RHEL 10.4, and RHIVOS 2.1 and 2.1-core. Users should upgrade to these fixed versions to fully remediate the vulnerability. Until patched, if RTP/RTCP is not required, disable the affected RTP session handling elements. Otherwise, restrict the negotiated RTCP port to trusted peers using network controls to reduce exposure. These mitigations do not correct the parser flaw but can limit attack surface.
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 out-of-bounds reads, potentially crashing the application or exposing limited process memory. The flaw affects multiple Red Hat and Fedora versions, with fixes available in newer releases. Mitigations include disabling RTP/RTCP if unused or restricting RTCP ports to trusted peers, but no complete mitigation exists without patching.