EUVD-2026-48739

FFmpeg through 8.1.2, fixed in commit 5d7112c, contains an uncontrolled resource consumption vulnerability in the IAMF demuxer that allows an unauthenticated attacker to cause multi-gigabyte memory allocation from a 17-byte input file by supplying a crafted countlabel field. The mixpresentationob...

CVE-2026-66037

FFmpeg through 8.1.2, fixed in commit 5d7112c, contains an uncontrolled resource consumption vulnerability in the IAMF demuxer that allows an unauthenticated attacker to cause multi-gigabyte memory allocation from a 17-byte input file by supplying a crafted countlabel field. The mixpresentationob...

CVE-2026-66037 FFmpeg IAMF Demuxer Uncontrolled Resource Consumption via mix_presentation_obu()

FFmpeg through 8.1.2, fixed in commit 5d7112c, contains an uncontrolled resource consumption vulnerability in the IAMF demuxer that allows an unauthenticated attacker to cause multi-gigabyte memory allocation from a 17-byte input file by supplying a crafted countlabel field. The mixpresentationob...

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

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 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...

CVE-2026-65706

A flaw was found in FFmpeg. This vulnerability, an out-of-bounds write in the vfswaprect video filter, allows an attacker to corrupt heap memory. By providing a specially crafted NV12 video frame with specific dimensions, a local user can trigger a memory corruption, leading to a process crash...

CVE-2026-64831

A flaw was found in FFmpeg. A remote attacker can exploit a stack buffer overflow vulnerability in the Vulkan HEVC High Efficiency Video Coding hardware decoder by providing a specially crafted HEVC/H.265 bitstream. This can lead to overwriting memory on the stack, potentially allowing the attack...

CVE-2026-65705

A flaw was found in FFmpeg. This vulnerability, an out-of-bounds write, affects the vffloodfill video filter. An attacker could exploit this by providing a malicious video stream, which, when processed with filtergraph reinitialization disabled, causes heap memory corruption. This can lead to a...

CVE-2026-65704

A flaw was found in FFmpeg. A remote attacker can exploit this vulnerability by providing a specially crafted ffconcat file, which, when processed with the -safe 0 flag, triggers an out-of-bounds write. This occurs due to improper bounds checking in the TY demuxer's demuxaudio function, leading t...

CVE-2026-66036: Heap-based Buffer Overflow

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-2026-66040: Heap-based Buffer Overflow

FFmpeg through 8.1.2, fixed in commit b506faf, contains a heap out-of-bounds write vulnerability in the native PNG and APNG encoders that allows remote attackers to corrupt heap memory by supplying a crafted PNG image with a malicious eXIf chunk. Attackers can craft an eXIf chunk where multiple I...

FFmpeg buffer overflow vulnerability (CNVD-2026-30455)

FFmpeg is a complete solution developed by the FFmpeg organization, which allows for recording, conversion, and streaming of audio and video files. FFmpeg has a buffer overflow vulnerability, which stems from an out-of-bounds write vulnerability in the vfswaprect video filter. Attackers can explo...

PT-2026-64417

Name of the Vulnerable Software and Affected Versions FFmpeg versions 7.0 through 8.1.2 Description A heap out-of-bounds write exists in the vf quirc filter. An attacker can corrupt heap memory by providing a crafted PGS/SUP subtitle file with mismatched frame dimensions, specifically where the...

CVE-2026-66039: Integer Overflow or Wraparound

FFmpeg through 8.1.2, fixed in commit aafb5c6, contains a signed integer overflow vulnerability in the MACE6 audio decoder that allows attackers to corrupt heap memory by supplying a crafted CAF file with a malicious bytesperpacket value. Attackers can craft a CAF file with oversized bytesperpack...

OPENSUSE-SU-2026:11361-1 ffmpeg-7-7.1.4-5.1 on GA media

These are all security issues fixed in the ffmpeg-7-7.1.4-5.1 package on the GA media of openSUSE Tumbleweed...

CVE-2026-66041: Out-of-bounds Write

FFmpeg 7.0 through 8.1.2, fixed in commit 4da9812, contains a heap out-of-bounds write vulnerability in the vfquirc filter that allows an attacker to corrupt heap memory by supplying a crafted PGS/SUP subtitle file with mismatched frame dimensions. Attackers can provide a subtitle file whose seco...

CVE-2026-66037: Allocation of Resources Without Limits or Throttling

FFmpeg through 8.1.2, fixed in commit 5d7112c, contains an uncontrolled resource consumption vulnerability in the IAMF demuxer that allows an unauthenticated attacker to cause multi-gigabyte memory allocation from a 17-byte input file by supplying a crafted countlabel field. The mixpresentationob...