Mercku M6a devices through 2.1.0 allow TELNET sessions via a router.telnet.enabled.update request by an administrator.
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: 2.2
Vector: CVSS2#AV:A/AC:L/Au:M/C:N/I:P/A:N
Severity: Low
Base Score: 2.4
Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
EPSS: 0.0001