CVE-2022-45439 Hardcoded credentials in AX7501-B0 firmware

Medium 6.5 Published 17 Jan 2023 Updated 3 Apr 2025

Attackers can access WLAN services using cleartext credentials found in the configuration file if they can retrieve it via another vulnerability.

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-2022-45439?

CVE-2022-45439 is a medium-severity vulnerability in Zyxel AX7501-B0 firmware, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A pair of spare WiFi credentials is stored in the configuration file of the Zyxel AX7501-B0 firmware prior to V5.17(ABPC.3)C0 in cleartext. An unauthenticated attacker could use the credentials to access the WLAN service if the configuration file has been retrieved from the device by leveraging another known vulnerability.

Weakness: CWE-312

Which versions are affected by CVE-2022-45439?

It affects 1 product.

Products include Zyxel Ax7501-B0 Firmware.

How do I fix CVE-2022-45439?

No fix has been published for CVE-2022-45439 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-45439 being exploited?

There is no known exploitation of CVE-2022-45439 in the wild and no public exploit code.

Sources

Also known as GHSA-j2fh-23pr-vj2r.