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Netatalk EUVD-2026-31229

| CVE-2026-44050 CRITICAL
Heap-based Buffer Overflow (CWE-122)
2026-05-21 securin GHSA-8f3j-jffj-vg2m
Buffer Overflow Heap Overflow Suse
9.9
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
Analysis Generated
May 21, 2026 - 08:00 vuln.today

DescriptionNVD

In Netatalk 2.0.0 through 4.4.2, heap buffer overflow in cnid daemon comm_rcv(). Fixed in 4.4.3.

AnalysisAI

Heap buffer overflow in the Netatalk cnid_metad daemon's comm_rcv() function allows remote attackers with low-level privileges to corrupt memory across versions 2.0.0 through 4.4.2. Given the CVSS 9.9 score with scope change and high impact across confidentiality, integrity, and availability, successful exploitation likely leads to code execution in the daemon's context. …

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RemediationAI

Within 24 hours: Identify and inventory all systems running Netatalk versions 2.0.0-4.4.2; document cnid_metad network exposure and dependency chains. Within 7 days: Implement firewall rules restricting access to cnid_metad service ports (typically TCP/UDP 4700-4701) from trusted internal networks only; disable the service where operationally feasible. …

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EUVD-2026-31229 vulnerability details – vuln.today
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