CVE-2026-44050 Heap buffer overflow in CNID daemon comm_rcv()
Remote authenticated attackers can execute arbitrary code or cause denial of service via a heap buffer overflow in the Netatalk CNID daemon.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44050?
CVE-2026-44050 is a critical memory corruption vulnerability in Netatalk, published on 21 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-122
Which versions are affected by CVE-2026-44050?
How do I fix CVE-2026-44050?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-44050 being exploited?
There is no known exploitation of CVE-2026-44050 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-44050, GHSA-8f3j-jffj-vg2m, UBUNTU-CVE-2026-44050.