What’s Vulnerable › Vulnerabilities

CVE-2023-50920

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-01-12 · updated 2026-06-17
• Weakness: CWE-384

Description

An issue was discovered on GL.iNet devices before version 4.5.0. They assign the same session ID after each user reboot, allowing attackers to share session identifiers between different sessions and bypass authentication or access control measures. Attackers can impersonate legitimate users or perform unauthorized actions. 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: 4.3.7, 4.4.6
• GL-iNet Gl-Ar300M Firmware: 4.3.7, 4.4.6
• GL-iNet Gl-Ar750 Firmware: 4.3.7, 4.4.6
• GL-iNet Gl-Ar750S Firmware: 4.3.7, 4.4.6
• GL-iNet Gl-Ax1800 Firmware: 4.3.7, 4.4.6
• GL-iNet Gl-Axt1800 Firmware: 4.3.7, 4.4.6
• GL-iNet Gl-B1300 Firmware: 4.3.7, 4.4.6
• GL-iNet Gl-Mt1300 Firmware: 4.3.7, 4.4.6
• GL-iNet Gl-Mt2500 Firmware: 4.3.7, 4.4.6
• GL-iNet Gl-Mt3000 Firmware: 4.3.7, 4.4.6
• GL-iNet Gl-Mt300N-V2 Firmware: 4.3.7, 4.4.6
• GL-iNet Gl-Mt6000 Firmware: 4.3.7, 4.4.6

References

• https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/Authentication-bypass-seesion-ID.md
• https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/Authentication-bypass-seesion-ID.md

Get alerted when CVE-2023-50920 or the next vulnerability affects your stack