CVE-2026-125256
7 HIGHpublic exploit availablePublished 2026-11-09 · Updated 2026-11-10
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in ff_llvidenc_diff_bytes_rvv() that allows attackers to corrupt heap memory by triggering negative length values in the Huffyuv encoder. Attackers can supply RGB video narrower than 8 or 16 pixels for huffyuv transcoding on RVV-enabled RISC-V builds, causing writes past the encoder's temp buffer.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-787
Public exploit & PoC references
All references
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25573
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/riscv/llvidencdsp_rvv.S#L26
- https://github.com/FFmpeg/FFmpeg/commit/1f7bdea654a8a9a1761759e22d83943371cff21f
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-heap-buffer-overflow-via-risc-v-vector-diff-bytes-routine
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
- MEDIUMCVE-2017-20283
- HIGHCVE-2017-20286PoC
- MEDIUMCVE-2020-37286PoC
- HIGHCVE-2021-48018PoC
- MEDIUMCVE-2021-48020PoC
- UNSCOREDCVE-2025-58773
- MEDIUMCVE-2025-60494PoC
- UNSCOREDCVE-2026-0454
Related by shared AI tags and CWE weakness class. Browse the full archive.