HOMEVULNERABILITIESCVE-2022-23121
CRITICAL

CVE-2022-23121

CWE-755Published: March 28, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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 parse_entries function. The issue results from the lack of proper error handling when parsing AppleDouble entries. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15819.

NVD Source

Technical Analysis

CVE-2022-23121 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Debian1 product(s)
debian linux
netatalk1 product(s)
netatalk
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://lists.debian.org/debian-lts-announce/2023/05/msg00018.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2023/06/msg00000.html
ADVISORYhttps://security.gentoo.org/glsa/202311-02
ADVISORYhttps://www.debian.org/security/2023/dsa-5503
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-22-527/
ADVISORYhttps://lists.debian.org/debian-lts-announce/2023/05/msg00018.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2023/06/msg00000.html
ADVISORYhttps://security.gentoo.org/glsa/202311-02
ADVISORYhttps://www.debian.org/security/2023/dsa-5503
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-22-527/

All References (13)

→
https://lists.debian.org/debian-lts-announce/2023/05/msg00018.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2023/06/msg00000.htmlMailing List · Third Party Advisory
→
https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.htmlRelease Notes
→
https://security.gentoo.org/glsa/202311-02Issue Tracking · Third Party Advisory
→
https://www.debian.org/security/2023/dsa-5503Third Party Advisory
→
https://www.zerodayinitiative.com/advisories/ZDI-22-527/Third Party Advisory · VDB Entry
→
https://lists.debian.org/debian-lts-announce/2023/05/msg00018.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2023/06/msg00000.htmlMailing List · Third Party Advisory
→
https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.htmlRelease Notes
→
https://security.gentoo.org/glsa/202311-02Issue Tracking · Third Party Advisory
→
https://www.debian.org/security/2023/dsa-5503Third Party Advisory
→
https://www.kb.cert.org/vuls/id/709991
→
https://www.zerodayinitiative.com/advisories/ZDI-22-527/Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2022-23121
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-755
CISA KEVNo
Affected2 vendor(s)
PublishedMar 28, 2023

Related CVEs (CWE-755)

CVE-2019-14431
9.8
CVE-2025-34193
9.8
CVE-2021-42142
9.8
CVE-2021-42141
9.8
CVE-2023-6267
9.8
CVE-2020-24753
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-23121 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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