CVE-2020-18330 Path traversal in n/a

Critical 9.1 Published 25 Jan 2023 Updated 1 Apr 2025

Attackers can access the configuration interface of ChinaMobile PLC Wireless Routers due to a path traversal vulnerability in the default configuration.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-18330?

CVE-2020-18330 is a critical path traversal vulnerability in n/a, published on 25 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in the default configuration of ChinaMobile PLC Wireless Router model GPN2.4P21-C-CN running the firmware version W2000EN-01(hardware platform Gpn2.4P21-C_WIFI-V0.05), allows attackers to gain access to the configuration interface.

Weakness: CWE-22

Which versions are affected by CVE-2020-18330?

It affects 1 product.

Products include Chinamobileltd Gpn2.4p21-C-Cn Firmware.

How do I fix CVE-2020-18330?

No fix has been published for CVE-2020-18330 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-18330 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-18330 exists.

Sources

Also known as GHSA-mhww-mq8c-j9q5.