Heap-Based Buffer Overflow in Netatalk Daemon
CVE-2026-44050

9.9CRITICAL

Key Information:

Vendor

Netatalk

Status
Netatalk
Vendor
CVE Published:
21 May 2026

What is CVE-2026-44050?

A vulnerability in the CNID daemon of Netatalk, present in versions 2.0.0 to 4.4.2, allows an authenticated remote attacker to exploit a heap-based buffer overflow in the comm_rcv() function. This exploitation can lead to unauthorized execution of arbitrary code with escalated privileges or result in a denial of service, affecting the availability of the service.

Affected Version(s)

Netatalk 2.0.0 <= 4.4.2

Netatalk 4.4.3

References

https://netatalk.io/security/CVE-2026-44050
vendor-advisory

CVSS V3.1

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Arjun Basnet from Securin
.