Vulnerability · Published Oct 22, 2025 · Assigned by mitre

CVE-2025-62773

Low 2.4

In plain English

A low-severity security flaw in M6a from Mercku. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)2.4Low

Exploit odds (30 days)0.2%top 93.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Mercku M6a devices through 2.1.0 allow TELNET sessions via a router.telnet.enabled.update request by an administrator.

Affected products (as reported)

Vendor	Product	Versions
Mercku	M6a	0 – through 2.1.0

Weakness: CWE-912 · Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

References

https://seclists.org/fulldisclosure/2025/Oct/10
https://blog.nullvoid.me/posts/mercku-exploits/