Critical severity · published Oct 21, 2026
CVE-2026-111183
GStreamer rtpL16depay Heap-based Buffer Overflow Remote Code Execution Vulnerability
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
GStreamer rtpL16depay Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the processing of RTP payload elements. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-31143.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GS
GStreamer · GStreamer
5903987091bb25e4f549331032cd2e3494cf8dae · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-111183
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-111183
gitlab.freedesktop.org
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/80c184b4c5ee8ba28b2540ba58f40b8d44b61622
www.zerodayinitiative.com
https://www.zerodayinitiative.com/advisories/ZDI-26-775/
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