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CVE-2026-2923 is a remote code execution vulnerability in GStreamer’s DVB subtitle decoding logic. The flaw exists in the handling of coordinate data, where insufficient validation of user-supplied values can cause a write past the end of an allocated buffer. This out-of-bounds write occurs while processing crafted DVB subtitle content and can corrupt adjacent memory. Because the vulnerable code is reached through media parsing, exploitation is possible through specially crafted multimedia content processed by an application or service that uses GStreamer. Successful exploitation can result in arbitrary code execution in the context of the current process.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
11 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.