What is CVE-2022-0194?

CVE-2022-0194 is a critical-severity vulnerability in Netatalk, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2023-03-28.

How severe is CVE-2022-0194?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-0194 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Netatalk

CVE-2022-0194

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.

Vulnerability class: Buffer Overflow

Published 2023-03-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.044 (91.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.044 · newest: 0.044 · change: 0.000

Affected products

Netatalk — versions 3.1.12
Debian Linux — versions 10.0, 11.0

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.html (Release Notes)
www.zerodayinitiative.com/advisories/ZDI-22-530/ (VDB Entry, Third Party Advisory)
lists.debian.org/debian-lts-announce/2023/05/msg00018.html (mailing-list, Mailing List, Third Party Advisory)
www.debian.org/security/2023/dsa-5503 (vendor-advisory, Third Party Advisory)
security.gentoo.org/glsa/202311-02 (vendor-advisory, Third Party Advisory, Issue Tracking)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2022-0194?: CVE-2022-0194 is a critical-severity vulnerability in Netatalk, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2023-03-28.
How severe is CVE-2022-0194?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-0194 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.