Skip to main content
CVE-2025-62775VulnerabilityPublished

CVE-2025-62775: Mercku M6a · Incorrect Resource Transfer Between Spheres

Affects Mercku M6aSource CVE Database V5

0

Not known to be exploited · CVSS 8.0 High.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
8.0High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Oct 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Mercku M6aAffected
  • =0
Fixed in–

AI-suggested

1. Immediately disable TELNET access on all Mercku M6a devices if possible, or restrict TELNET access to trusted management networks only. 2. Change the web admin password to a strong, unique value and ensure it is not reused elsewhere. 3. Implement network segmentation to isolate management interfaces from general user networks, reducing exposure to adjacent network attacks. 4. Monitor network traffic and device logs for unusual TELNET login attempts or other suspicious activities. 5. Apply strict access control lists (ACLs) to limit which IP addresses can reach the device management interfaces. 6. Regularly audit device configurations and firmware versions to identify vulnerable devices. 7. Engage with Mercku support channels to obtain patches or firmware updates as soon as they become available. 8. Consider deploying intrusion detection/prevention systems (IDS/IPS) tuned to detect attempts to exploit this vulnerability. 9. Educate network administrators about the risks of TELNET and encourage migration to more secure management protocols such as SSH. 10. Prepare incident response plans specific to network device compromise scenarios to enable rapid containment and recovery.

Description

Mercku M6a devices through 2.1.0 allow root TELNET logins via the web admin password.

References

Community reviews

Loading reviews…