CVE-2026-66036

A flaw was found in FFmpeg. A remote attacker can exploit a heap out-of-bounds write vulnerability within the vfhqdn3d filter by providing a specially crafted video file. When filtergraph reinitialization is disabled, the filter allocates undersized memory buffers for video frames. Subsequent...

SUSE 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...

Heap-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the configinput and denoisespatial functions of the vfhqdn3d filter, which sizes its working buffers for the initial frame dimensions and does not resize them when a later frame is larger. An attacker can...

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 FFmpeg Heap Out-of-Bounds Write in vf_hqdn3d Filter

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 ...

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 FFmpeg Heap Out-of-Bounds Write in vf_hqdn3d Filter

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 FFmpeg Heap Out-of-Bounds Write in vf_hqdn3d Filter

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

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...

EUVD-2026-48738

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...