CVE-2023-50921

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-01-03 · updated 2026-06-17
Weakness: CWE-269

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.

Affected products

GL-iNet Gl-A1300 Firmware: 4.4.6
GL-iNet Gl-Ar300M Firmware: 4.3.7
GL-iNet Gl-Ar750 Firmware: 4.3.7
GL-iNet Gl-Ar750S Firmware: 4.3.7
GL-iNet Gl-Ax1800 Firmware: 4.4.6
GL-iNet Gl-Axt1800 Firmware: 4.4.6
GL-iNet Gl-B1300 Firmware: 4.3.7
GL-iNet Gl-Mt1300 Firmware: 4.3.7
GL-iNet Gl-Mt2500 Firmware: 4.4.6
GL-iNet Gl-Mt3000 Firmware: 4.4.6
GL-iNet Gl-Mt300N-V2 Firmware: 4.3.7
GL-iNet Gl-Mt6000 Firmware: 4.5.0

References

https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/Add_user_vulnerability.md
https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/Add_user_vulnerability.md

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