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2026-11-01
FFmpeg Go2Meeting Decoder Uninitialized Variable Stack Memory Leak (CVE-2026-120243) Technical Advisory
[Affected Scope] FFmpeg versions 2.0 through 9.0.2 containing the Go2Meeting (G2M) decoder
[Impact] Attackers can leak sensitive stack memory, including pointers and stack guards, by triggering out-of-range palette index copies
[Mitigation] Upgrade to a patched version of FFmpeg or disable the vulnerable G2M decoder during compilation