CVE-2025-62777 Hardcoded credentials in MZK-DP300N
Hard-coded credentials allow local network attackers to log in via Telnet and execute arbitrary commands on the device.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-62777?
CVE-2025-62777 is a high-severity vulnerability in PLANEX COMMUNICATIONS INC. MZK-DP300N, published on 28 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Use of Hard-Coded Credentials issue exists in MZK-DP300N version 1.07 and earlier, which may allow an attacker within the local network to log in to the affected device via Telnet and execute arbitrary commands.
Weakness: CWE-798
Which versions are affected by CVE-2025-62777?
How do I fix CVE-2025-62777?
No fix has been published for CVE-2025-62777 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-62777 being exploited?
There is no known exploitation of CVE-2025-62777 in the wild and no public exploit code.
Sources
Also known as GHSA-423r-r42q-j5mc.