CVE-2026-125186
FFmpeg through 9.0.2 CPU Exhaustion via dts2pts Bitstream Filter
CVSS Score
4.7
EPSS Score
0.0%
EPSS Percentile
0th
FFmpeg through 9.0.2 contains an uncontrolled resource consumption vulnerability in the dts2pts bitstream filter that allows attackers to exhaust CPU through unbounded per-packet POC node allocation. Attackers can supply a crafted H.264 packet with many slices of alternating picture order counts, forcing h264_queue_frame() to allocate tree nodes per slice and deny service.
| CWE | CWE-770 |
| Vendor | ffmpeg |
| Product | ffmpeg |
| Published | Nov 9, 2026 |
| Last Updated | Nov 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
FFmpeg / FFmpeg
0 ≤ 9.0.2
References
code.ffmpeg.org: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25569 github.com: https://github.com/FFmpeg/FFmpeg/commit/d8013c061725631261d7326c07d2af3a67fa4bc1 github.com: https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/bsf/dts2pts.c#L363 github.com: https://github.com/FFmpeg/FFmpeg vulncheck.com: https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-cpu-exhaustion-via-dts2pts-bitstream-filter
Credits
Joshua Rogers (AISLE Research) Michael Niedermayer