Is CVE-2022-23121 in the CISA KEV catalog?

No. CVE-2022-23121 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-23121?

CVE-2022-23121 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2022-23121?

CVE-2022-23121 has an EPSS score of 8.53% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-23121?

Upgrade netatalk on debian 11 to 3.1.12~ds-8+deb11u1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2022-23121

CRITICALEPSS 94th pctl

9.8

CVSS v3

NVD

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.

CWE-755

How to fix

Remediation Available

netatalkDebian

Fixed in:3.1.12~ds-8+deb11u1CVE-2022-23121

Fixed in:3.1.13~ds-1CVE-2022-23121

netatalkUbuntu

Fixed in:2.2.2-1ubuntu2.2+esm1USN-6146-1

Fixed in:2.2.5-1ubuntu0.2+esm1USN-6146-1

Fixed in:2.2.6-1ubuntu0.18.04.2+esm1USN-6146-1

Fixed in:3.1.12~ds-4ubuntu0.20.04.1USN-6146-1

Fixed in:3.1.12~ds-9ubuntu0.22.04.1USN-6146-1

Fixed in:3.1.13~ds-2ubuntu0.22.10.1USN-6146-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

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

Exploit Intelligence

8.53%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Third-Party Advisory5

Release Notes1

netatalk.sourceforge.io

Other references1

kb.cert.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-04.