CVE-2026-44050
CWE-122Published: May 21, 2026· Updated: May 21, 2026
Official 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.
Risk Analysis
This critical heap-based buffer overflow in the Netatalk CNID daemon allows a remote authenticated attacker to execute arbitrary code with elevated privileges or cause a denial of service. With a CVSS score of 9.9, this vulnerability poses a significant threat to system integrity and availability. The flaw affects Netatalk versions 2.0.0 through 4.4.2.
No public exploit is currently known for this vulnerability. The attack is remotely exploitable by an authenticated user over the network with low attack complexity.
Organizations using Netatalk should monitor for official patches and apply them as soon as they become available. Until a patch is released, consider restricting network access to the CNID daemon to trusted users only.
Technical Analysis
CVE-2026-44050 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.9.
The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (1)
Quick Facts
Related CVEs (CWE-122)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-44050 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts