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CVE-2026-39210 is a heap buffer overflow in FFmpeg’s TS demuxer. The flaw was reported as having been introduced in 2010. The vulnerability affects FFmpeg’s parsing of MPEG transport stream data within the demuxing path, where malformed attacker-controlled media input can trigger an out-of-bounds write on heap-allocated memory. As a memory corruption issue in a media parser, successful exploitation can lead to process instability and may create conditions for further exploitation depending on allocator behavior, surrounding memory layout, and runtime protections.
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No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Heap buffer overflow vulnerability in FFmpeg's TS demuxer.
One of nine FFmpeg vulnerabilities identified by an autonomous AI agent; the FFmpeg findings are described as mostly heap or stack overflows in parsers and demuxers.
One of nine CVE-backed FFmpeg vulnerabilities in a campaign spanning demuxers, muxers, codecs, RTP handling, scaling, and command-line parsing.
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.