CVE-2026-44050
Deferred Deferred - Pending Action

Heap Buffer Overflow in Netatalk

Publication date: 2026-05-21

Last updated on: 2026-05-21

Assigner: securin

Description
A heap-based buffer overflow in the CNID daemon comm_rcv() function in Netatalk 2.0.0 through 4.4.2 allows a remote authenticated attacker to execute arbitrary code with escalated privileges or cause a denial of service.

CVSS Scores

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Meta Information

Published
2026-05-21
Last Modified
2026-05-21
Generated
2026-06-30
AI Q&A
2026-05-21
EPSS Evaluated
2026-06-29
NVD
CVE-2026-44050
EUVD
EUVD-2026-31229

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
netatalk netatalk From 2.0.0 (inc) to 4.4.2 (inc)
netatalk netatalk 4.4.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Attack-Flow Graph

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Executive Summary

This vulnerability is a heap buffer overflow found in the cnid daemon's comm_rcv() function in Netatalk versions 2.0.0 through 4.4.2. A heap buffer overflow occurs when a program writes more data to a buffer located on the heap than it is allocated to hold, which can lead to memory corruption.

The issue was fixed in version 4.4.3 of Netatalk.

Impact Analysis

This vulnerability has a very high severity with a CVSS v3.1 base score of 9.9, indicating it is critical.

Exploitation of this heap buffer overflow can lead to complete compromise of the affected system, including full confidentiality, integrity, and availability impacts.

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