Mercku M6a devices through 2.1.0 allow root TELNET logins via the web admin password.
https://seclists.org/fulldisclosure/2025/Oct/10
https://blog.nullvoid.me/posts/mercku-exploits/
Source: Mitre, NVD
Published: 2025-10-22
Updated: 2025-10-22
Base Score: 7.7
Vector: CVSS2#AV:A/AC:L/Au:S/C:C/I:C/A:C
Severity: High
Base Score: 8
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.00024