CVE-2026-3083VulnerabilityPublished 6 Mar 2026

ZDI-26-166: GStreamer rtpqdm2depay Out-Of-Bounds Write Remote Code Execution Vulnerability

Source Zero Day Initiative

Compare

Not known to be exploited.

Data as of 29 Oct 2026, 19:04 UTC

Severity

High

Rated High by Zero Day Initiative · No CVSS score from NVD or the CNA

EPSS: 0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

Disclosed: evidence found.
Public on cve.org; its publication date is not in this record
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 29 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

remote

What to do

AI-suggested

An official patch has been released by GStreamer to correct this vulnerability. Users and administrators should apply the update provided by GStreamer as soon as possible to remediate the issue. The vendor advisory and commit at https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/d60a94dee3c0a0942c9981491bf83e0de1900fbf contain the remediation details. No additional mitigations are specified or required beyond applying the official fix.

Description

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 ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2026-3083.

Impact

Successful exploitation of this vulnerability allows remote attackers to execute arbitrary code on affected systems running GStreamer, potentially leading to full compromise of the process using the vulnerable library. The vulnerability affects confidentiality, integrity, and availability (all rated high). No known exploits in the wild have been reported at the time of disclosure.

Summary

CVE-2026-3083 is a critical remote code execution vulnerability in GStreamer's rtpqdm2depay component. The vulnerability arises from improper validation of the packetid element in X-QDM RTP payloads, leading to an out-of-bounds write past the end of an allocated array. Exploitation requires interaction with the vulnerable library, and successful exploitation allows execution of arbitrary code in the context of the current process. The Zero Day Initiative assigned a CVSS score of 8.8 and coordinated public disclosure on March 6, 2026. GStreamer has released a patch to fix this vulnerability, as detailed in their official commit.

References

zerodayinitiative.com/advisories/ZDI-26-166/ (opens in a new tab)

Community reviews

Loading reviews…