Vulnerability · Published Oct 22, 2025 · Assigned by mitre

CVE-2025-62775

High 8.0

In plain English

A high-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 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)8.0High

Exploit odds (30 days)0.3%top 79.5% 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 root TELNET logins via the web admin password.

Affected products (as reported)

Vendor	Product	Versions
Mercku	M6a	0 – through 2.1.0

Weakness: CWE-669 · Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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