Vulnerability · Published Oct 28, 2025 · Assigned by jpcert

CVE-2025-62777

High 8.8

In plain English

A high-severity hard-coded credentials in MZK-DP300N from PLANEX COMMUNICATIONS INC.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 3.0)8.8High
Exploit odds (30 days)0.3%top 80.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

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.

Affected products (as reported)

VendorProductVersions
PLANEX COMMUNICATIONS INC. MZK-DP300N 1.07 and earlier

Weakness: CWE-798 · Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References