What’s Vulnerable › Vulnerabilities

CVE-2026-8979: Authentication Bypass

• Severity: critical (CVSS 9.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-28 · updated 2026-10-26
• Weakness: CWE-287

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.

Affected products

• Mennekes Amtron: through 5.22.3

References

• https://cyberdanube.com/security-research/multiple-vulnerabilities-in-mennekes-amtron-series/
• https://cyberdanube.com/security-research/multiple-vulnerabilities-in-mennekes-amtron-series/

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