CVE-2026-8979
Critical
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.
SeverityCritical
CVSS9.3
Exploit probability—
ProductAmtron
PublishedMay 28, 2026
First seenMay 28, 2026
Weakness typeCWE-287Improper authentication
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Mennekes Amtron | v ≤ 5.22.3 | — |
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