CVE-2026-44050 PUBLISHED

Heap buffer overflow in CNID daemon comm_rcv()

Assigner: securin
Reserved: 05.05.2026 Published: 21.05.2026 Updated: 21.05.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.9

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Netatalk
Product	Netatalk
Versions	Default: unaffected affected from 2.0.0 to 4.4.2 (incl.) Version 4.4.3 is unaffected

Credits

Arjun Basnet from Securin finder

References

Netatalk Security Advisory CVE-2026-44050

Problem Types

Heap-based Buffer Overflow CWE