CVE-2026-120243

FFmpeg 2.0 through 9.0.2 contains a use of uninitialized variable vulnerability in the Go2Meeting decoder that allows attackers to leak stack memory through out-of-range palette indices. Attackers can craft a G2M3/G2M4 stream with a short Kempf palette so kempfrestorebuf copies uninitialized stac...

CVE-2026-120243 FFmpeg 2.0 through 9.0.2 Information Disclosure via G2M Kempf Palette

FFmpeg 2.0 through 9.0.2 contains a use of uninitialized variable vulnerability in the Go2Meeting decoder that allows attackers to leak stack memory through out-of-range palette indices. Attackers can craft a G2M3/G2M4 stream with a short Kempf palette so kempfrestorebuf copies uninitialized stac...

CVE-2026-120243

Versions 2.0 through 9.0.2 of FFmpeg are vulnerable to a use of uninitialized variable in the Go2Meeting decoder . By crafting a G2M3/G2M4 stream with a short Kempf palette, an attacker can trigger the kempf_restore_buf() function to copy uninitialized stack bytes—potentially including pointers o...