Heap Buffer Overflow in FFmpeg update_mb_info()
CVE-2026-39215 is reported as a heap buffer overflow in FFmpeg's update_mb_info() function. The provided content states only that the flaw was introduced in 2012 and is one of a set of FFmpeg memory-corruption vulnerabilities identified by Depthfirst. No additional technical details about the specific code path, triggering input, affected codec/container path, or vulnerable allocation logic for update_mb_info() are provided in the supplied material.
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Recent activity
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Heap buffer overflow vulnerability in FFmpeg update_mb_info().
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.
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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.