CVE-2026-44055 | Bitwise OR logic bug enables shell injection

A logic error involving bitwise OR operations in Netatalk 3.1.4 through 4.4.2 allows a remote authenticated attacker to inject OS commands and execute arbitrary code.

Published: 2026-05-21 Last update: 2026-06-17 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-2026-44055 is rated Low Risk (39.8/100): CVSS High severity, with low exploitation likelihood (EPSS 0.36%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2026-44055

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 2026-06-15 0.26% 0.36% +0.10%
2 2026-05-27 0.23% 0.26% +0.03%
3 2026-05-21 — 0.23% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-44055

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/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:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
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.
 1.6 5.9 33c584b5-0579-4c06-b2a0-8d8329fcab9c

Weakness enumeration for CVE-2026-44055

GitHub Security Advisory for CVE-2026-44055

GHSA-2jff-6g6p-wr79 · Severity: high — A logic error involving bitwise OR operations in Netatalk 3.1.4 through 4.4.2 allows a remote...

OS Trackers for CVE-2026-44055

vendor priority summary link
debian not yet assigned CVE-2026-44055 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-2026-44055
suse high — https://www.suse.com/security/cve/CVE-2026-44055/
ubuntu medium CVE-2026-44055 medium priority: Ubuntu including 1 source packages (netatalk), 8 status rows across 8 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream): not-affected 5, released 2, needed 1. https://ubuntu.com/security/CVE-2026-44055

Affected software / configurations for CVE-2026-44055

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-44055

cvelogic Threat Intelligence