Unrated severityNVD Advisory· Published Mar 13, 2026· Updated Mar 18, 2026
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability
CVE-2026-3084
Description
GStreamer H.266 Codec Parser Integer Underflow 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 parsing of picture partitions. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28910.
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Affected products
2Patches
Vulnerability mechanics
References
2- gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/496e4f296e658fba7fd40027d3bbe6095633ec91mitrevendor-advisory
- www.zerodayinitiative.com/advisories/ZDI-26-169/mitrex_research-advisory
News mentions
1- ZDI-26-169: GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution VulnerabilityZero Day Initiative · Mar 6, 2026