What is CVE-2022-23122?

CVE-2022-23122 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-2022-23122?

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

Is CVE-2022-23122 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-2022-23122

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 setfilparams 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-15837.

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 (91.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.0% 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-22-529/ (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-2022-23122?: CVE-2022-23122 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-2022-23122?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-23122 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.