UBUNTU-CVE-2026-66036

FFmpeg through 8.1.2, fixed in commit 5d7112c, contains a heap out-of-bounds write vulnerability in the vfhqdn3d filter that allows attackers to corrupt heap memory by supplying a crafted video whose frame resolution increases between frames when filtergraph reinitialization is disabled via the...

CVE-2026-66036

CVE-2026-66036 affects FFmpeg up to version 8.1.2. A heap out-of-bounds write exists in the vf_hqdn3d filter when a crafted video increases frame width between frames and filtergraph reinitialization is disabled (-reinit_filter 0). The vulnerability stems from vf_hqdn3d.config_input() allocating ...