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.

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Fixes

Solution

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Workaround

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History

Thu, 28 May 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 28 May 2026 14:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Authentication Bypass
Weaknesses CWE-287
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: CyberDanube

Published:

Updated: 2026-05-28T14:21:33.159Z

Reserved: 2026-05-19T13:11:28.172Z

Link: CVE-2026-8979

cve-icon Vulnrichment

Updated: 2026-05-28T14:21:29.135Z

cve-icon NVD

Status : Received

Published: 2026-05-28T14:16:24.910

Modified: 2026-05-28T16:16:30.800

Link: CVE-2026-8979

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T15:45:19Z

Weaknesses