What is the CVSS score of CVE-2023-50921?

CVE-2023-50921 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Gl Mt1300 Firmware are affected by CVE-2023-50921?

CVE-2023-50921 presents critical security risk, a improper privilege management vulnerability rated CVSS 9.8.

How to fix or mitigate CVE-2023-50921?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Gl Mt1300 Firmware CVE-2023-50921

CRITICAL

Improper Privilege Management (CWE-269)

2024-01-03 cve@mitre.org

Privilege Escalation Gl Mt1300 Firmware Gl Mt300N V2 Firmware Gl Ar750S Firmware Gl Ar750 Firmware Gl Ar300M Firmware Gl B1300 Firmware Gl Mt6000 Firmware Gl A1300 Firmware Gl Ax1800 Firmware Gl Axt1800 Firmware Gl Mt3000 Firmware Gl Mt2500 Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:33 vuln.today

CVE Published

Jan 03, 2024 - 09:15 nvd

CRITICAL 9.8

DescriptionCVE.org

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.

AnalysisAI

An issue was discovered on GL.iNet devices through 4.5.0. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Privilege Management (CWE-269), which allows attackers to escalate privileges to gain unauthorized elevated access. 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 include: Gl-Inet Gl-Mt1300 Firmware, Gl-Inet Gl-Mt300N-V2 Firmware, Gl-Inet Gl-Ar750S Firmware, Gl-Inet Gl-Ar750 Firmware, Gl-Inet Gl-Ar300M Firmware. Version information: through 4.5.0..

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply principle of least privilege, validate privilege transitions, implement proper role separation.