PT-2026-44377 · Mennekes · Amtron

S. Eisenreich-Dietz · Published 2026-05-28 · Updated 2026-05-28 · CVE-2026-8979

NVD

CVSS v4.0

9.3

Critical

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

The Mennekes Amtron series (firmware versions ≤ 5.22.3) is vulnerable to an authentication bypass. An unauthenticated remote attacker can change the password of the user account via a crafted POST request to the /operator/operator endpoint.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2026-8979

Affected Products

Amtron

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-8979 · Security Note
• https://cyberdanube.com/security-research/multiple-vulnerabilities-in-mennekes-amtron-series · Note