CVE-2026-44050 | Heap buffer overflow in CNID daemon comm_rcv()

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.

Published: 2026-05-21 Last update: 2026-05-21 Assigner: 33c584b5-0579-4c06-b2a0-8d8329fcab9c Source: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-44050 is rated Moderate Risk (52.1/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.15%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-44050

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-27 0.14% 0.15% +0.02%
2 2026-05-21 — 0.14% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-44050

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.9 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.1 6.0 33c584b5-0579-4c06-b2a0-8d8329fcab9c

Weakness enumeration for CVE-2026-44050

GitHub Security Advisory for CVE-2026-44050

GHSA-8f3j-jffj-vg2m · Severity: critical — A heap-based buffer overflow in the CNID daemon comm_rcv() function in Netatalk 2.0.0 through 4.4...

OS Trackers for CVE-2026-44050

vendor priority summary link
debian not yet assigned CVE-2026-44050 not yet assigned priority: Debian including 1 source packages (netatalk), 4 status rows across 4 suites (bullseye, forky, sid, trixie): resolved 3, open 1. https://security-tracker.debian.org/tracker/CVE-2026-44050
suse high — https://www.suse.com/security/cve/CVE-2026-44050/
ubuntu medium CVE-2026-44050 medium priority: Ubuntu including 1 source packages (netatalk), 8 status rows across 8 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream): released 7, needed 1. https://ubuntu.com/security/CVE-2026-44050

Affected software / configurations for CVE-2026-44050

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-44050

cvelogic Threat Intelligence