Vulnerability details

CVE-2026-111183

GStreamer GStreamer

GStreamer rtpL16depay Heap-based Buffer Overflow Remote Code Execution Vulnerability

CVSS 3.0

9.8Critical

Official 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 scores

Score	Version	Source	Vector
9.8Critical	3.0	CVEProject cvelistV5 (CNA) (zdi)	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
GStreamer	GStreamer	5903987091bb25e4f549331032cd2e3494cf8dae	CVEProject cvelistV5 (CNA)

References and advisories

https://www.zerodayinitiative.com/advisories/ZDI-26-775/ x_research-advisory
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/80c184b4c5ee8ba28b2540ba58f40b8d44b61622 vendor-advisory

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Details

Published: 2026-10-21
Last updated: 2026-10-23
State: Published
Assigner (CNA): zdi
Kolun priority: 28 · Low

Exploit prediction (EPSS)

0.7%

Probability of exploitation in 30 days

53.4%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-122
Heap-based Buffer Overflow