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CVE-2026-39216 is a heap buffer overflow vulnerability in FFmpeg affecting code in img2enc.c. The flaw was reportedly introduced in 2012. The available information identifies the bug class and affected source file, but does not provide further technical detail about the specific vulnerable function, trigger condition, or parsing pathway. Successful exploitation would involve causing FFmpeg to perform an out-of-bounds write on heap-allocated memory while processing attacker-controlled input that reaches the vulnerable img2enc.c code path.
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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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Heap buffer overflow vulnerability in FFmpeg img2enc.c.
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.