CVE catalog

CVE-2025-59734

ffmpeg: CVE-2025-59734

Severity: High · CVSS 8.7CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: Sep 24, 2025, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.18% · Oct 25, 2026

It is possible to cause an use-after-free write in SANM decoding with a carefully crafted animation using subversion <2. When a STOR chunk is present, a subsequent FOBJ chunk will be saved in ctx->stored_frame. Stored frames can later be referenced by FTCH chunks. For files using subversion < 2, the undecoded frame is stored, and decoded again when the FTCH chunks are parsed. However, in process_frame_obj if the frame has an invalid size, there’s an early return, with a value of 0. This causes the code in decode_frame to still store the raw frame buffer into ctx->stored_frame. Leaving ctx->has_dimensions set to false. A subsequent chunk with type FTCH would call process_ftch and decode that frame obj again, adding to the top/left values and calling process_frame_obj again. Given that we never set ctx->have_dimensions before, this time we set the dimensions, calling init_buffers, which can reallocate the buffer in ctx->stored_frame, freeing the previous one. However, the GetByteContext object gb still holds a reference to the old buffer. Finally, when the code tries to decode the frame, codecs that accept a GetByteContext as a parameter will trigger a use-after-free read when using gb. GetByteContext is only used for reading bytes, so at most one could read invalid data. There are no heap allocations between the free and when the object is accessed. However, upon returning to process_ftch, the code restores the original values for top/left in stored_frame, writing 4 bytes to the freed data at offset 6, potentially corrupting the allocator’s metadata. This issue can be triggered just by probing whether a file has the sanm format. We recommend upgrading to version 8.0 or beyond.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	ffmpeg	sid	`7:9.0.2-4`	not affected
Debian	ffmpeg	forky	`7:9.0.2-4`	not affected
Debian	ffmpeg	trixie	`7:7.1.5-0+deb13u1`	not affected
Debian	ffmpeg	trixie-security	`7:7.1.5-0+deb13u1`	not affected
Debian	ffmpeg	bookworm	`7:5.1.9-0+deb12u1`	not affected
Debian	ffmpeg	bookworm-security	`7:5.1.9-0+deb12u1`	not affected
Ubuntu	libav	pro	`6:0.8.7-1ubuntu2`	vulnerable
Ubuntu	libav	pro	`6:9.10-1ubuntu1`	vulnerable
Ubuntu	libav	pro	`6:9.10-1ubuntu2`	vulnerable
Ubuntu	libav	pro	`6:9.10-1ubuntu5`	vulnerable
Ubuntu	libav	pro	`6:9.10-1ubuntu6`	vulnerable
Ubuntu	libav	pro	`6:9.10-1ubuntu7`	vulnerable
Ubuntu	libav	pro	`6:9.11-2ubuntu1`	vulnerable
Ubuntu	libav	pro	`6:9.11-2ubuntu2`	vulnerable
Ubuntu	libav	pro	`6:9.13-0ubuntu0.14.04.1`	vulnerable
Ubuntu	libav	pro	`6:9.14-0ubuntu0.14.04.1`	vulnerable
Ubuntu	libav	pro	`6:9.16-0ubuntu0.14.04.1`	vulnerable
Ubuntu	libav	pro	`6:9.18-0ubuntu0.14.04.1`	vulnerable
Ubuntu	libav	pro	`6:9.20-0ubuntu0.14.04.1`	vulnerable
Ubuntu	libav	pro	`6:9.20-0ubuntu0.14.04.1+esm1`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.1.4-1build2`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.1-2`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.1-2ubuntu1`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.2-1build1`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.2-1ubuntu1`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.4-1ubuntu0.1`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.4-1ubuntu0.1+esm1`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm1`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm2`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm3`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm4`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm5`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm6`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm7`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm8`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm9`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm10`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm11`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm12`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm13`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm14`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm15`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm16`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm17`	vulnerable
Ubuntu	ffmpeg	pro	`7:4.2.7-0ubuntu0.1+esm18`	vulnerable
Ubuntu	ffmpeg	22.04	`7:4.4-6ubuntu5`	vulnerable
Ubuntu	ffmpeg	22.04	`7:4.4.1-2ubuntu1`	vulnerable
Ubuntu	ffmpeg	22.04	`7:4.4.1-3ubuntu1`	vulnerable
Ubuntu	ffmpeg	22.04	`7:4.4.1-3ubuntu2`	vulnerable
Ubuntu	ffmpeg	22.04	`7:4.4.1-3ubuntu3`	vulnerable
Ubuntu	ffmpeg	22.04	`7:4.4.1-3ubuntu5`	vulnerable
Ubuntu	ffmpeg	22.04	`7:4.4.2-0ubuntu0.22.04.1`	vulnerable
Ubuntu	ffmpeg	24.04	`7:6.0-6ubuntu1`	vulnerable
Ubuntu	ffmpeg	24.04	`7:6.0-9ubuntu1`	vulnerable
Ubuntu	ffmpeg	24.04	`7:6.1-2ubuntu1`	vulnerable
Ubuntu	ffmpeg	24.04	`7:6.1-3ubuntu1`	vulnerable
Ubuntu	ffmpeg	24.04	`7:6.1-4ubuntu1`	vulnerable
Ubuntu	ffmpeg	24.04	`7:6.1-5ubuntu1`	vulnerable
Ubuntu	ffmpeg	24.04	`7:6.1.1-1ubuntu1`	vulnerable
Ubuntu	ffmpeg	24.04	`7:6.1.1-3ubuntu1`	vulnerable
Ubuntu	ffmpeg	24.04	`7:6.1.1-3ubuntu5`	vulnerable
Ubuntu	ffmpeg	25.10	`7:7.1.1-1ubuntu1`	vulnerable
Ubuntu	ffmpeg	25.10	`7:7.1.1-1ubuntu2`	vulnerable
Ubuntu	ffmpeg	25.10	`7:7.1.1-1ubuntu3`	vulnerable
Ubuntu	ffmpeg	25.10	`7:7.1.1-1ubuntu4`	vulnerable
Ubuntu	ffmpeg	25.10	`7:7.1.1-1ubuntu4.1`	vulnerable
Ubuntu	ffmpeg	25.10	`7:7.1.1-1ubuntu4.2`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	ffmpeg	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	ffmpeg	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	ffmpeg	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	ffmpeg	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[ffmpeg]Not affected
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[ffmpeg-doc]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · all · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · all · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · all · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · all · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavcodec59]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavcodec-dev]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavcodec-extra]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavcodec-extra59]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavdevice59]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavdevice-dev]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavfilter8]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavfilter-dev]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavfilter-extra]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavfilter-extra8]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavformat59]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavformat-dev]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavformat-extra]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavformat-extra59]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavutil57]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libavutil-dev]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libpostproc56]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
[libpostproc-dev]Not affected
Source package: [ffmpeg]
Details (4)
- 7:5.1.9-0+deb12u1 · amd64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm
- 7:5.1.9-0+deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · ffmpeg · debian · bookworm

Next results

Observed: Oct 27, 2026, 11:38:43 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]