CVE-2026-125228
FFmpeg before 8.1.3 and 9.x before 9.0.2 Out-of-Bounds Read in Vorbis Encoder
FFmpeg before 8.1.3 and 9.x before 9.0.2 contains an out-of-bounds read vulnerability in put_vector() in libavcodec/vorbisenc.c when NaN samples leave the codebook entry at -1. Attackers can supply audio with NaN float samples to the native Vorbis encoder, causing heap reads before arrays that crash the application or leak adjacent heap memory into output.
Public vulnerability details
- Record state
- Published
- Published (UTC)
- Last updated (UTC)
- Assigned by
- VulnCheck
- CVSS score
- 5.8 (CVSS v4.0, from VulnCheck)
- Severity
- MEDIUM
- CISA KEV
- No KEV entry in this record. This does not show that the CVE is absent from the KEV catalog.
- Additional data from
- CISA-ADP
FHE assessment
No FHE assessment is available in this application yet. This does not mean FHE cannot mitigate an impact of this CVE.
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24392 (VulnCheck)
- Patch Commit (VulnCheck)
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.1/libavcodec/vorbisenc.c#L915 (VulnCheck)
- https://github.com/FFmpeg/FFmpeg (VulnCheck)
- VulnCheck Advisory: FFmpeg before 8.1.3 and 9.x before 9.0.2 Out-of-Bounds Read in Vorbis Encoder (VulnCheck)
Source
CVE JSON 5.2 record from the CVE List archive 2026-11-10_delta_CVEs_at_1600Z.zip, which covers changes through . Imported .