CVE-2023-50921 Privilege escalation in n/a

Critical 9.8 Published 3 Jan 2024 Updated 18 Jun 2025

Attackers can invoke the add_user interface to gain root privileges on GL.iNet routers, requiring firmware upgrades to mitigate.

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-2023-50921?

CVE-2023-50921 is a critical vulnerability in n/a, published on 3 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered on GL.iNet devices through 4.5.0. Attackers can invoke the add_user interface in the system module to gain root privileges. This affects A1300 4.4.6, AX1800 4.4.6, AXT1800 4.4.6, MT3000 4.4.6, MT2500 4.4.6, MT6000 4.5.0, MT1300 4.3.7, MT300N-V2 4.3.7, AR750S 4.3.7, AR750 4.3.7, AR300M 4.3.7, and B1300 4.3.7.

Weakness: CWE-269

Which versions are affected by CVE-2023-50921?

It affects 12 products.

Products include Gl-Inet Gl-A1300 Firmware, Gl-Inet Gl-Ar300m Firmware, Gl-Inet Gl-Ar750 Firmware, Gl-Inet Gl-Ar750s Firmware, Gl-Inet Gl-Ax1800 Firmware, Gl-Inet Gl-Axt1800 Firmware and 6 more.

How do I fix CVE-2023-50921?

No fix has been published for CVE-2023-50921 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-50921 being exploited?

There is no known exploitation of CVE-2023-50921 in the wild and no public exploit code.

Sources

Also known as GHSA-j7h9-fx4j-q5vr.