What is the CVSS score of CVE-2026-26795?

CVE-2026-26795 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: 0.2%.

Which versions of Ar300m16 Firmware are affected by CVE-2026-26795?

A critical command injection vulnerability (CVE-2026-26795) affecting GL-iNet GL-AR300M16 routers allows unauthenticated attackers to execute arbitrary commands with a 9.8 CVSS score.

How to fix or mitigate CVE-2026-26795?

Within 24 hours: Inventory all GL-AR300M16 devices running v4.3.11 and isolate affected units from production networks if possible. Within 7 days: Implement network segmentation to restrict access to management interfaces and deploy WAF rules to block malicious payloads targeting the M.get_system_log function. Within 30 days: Evaluate replacement hardware or monitor vendor communications for patch availability; conduct forensic analysis on affected devices for signs of compromise.

Ar300m16 Firmware CVE-2026-26795

CRITICAL

Command Injection (CWE-77)

2026-03-12 cve@mitre.org

Command Injection Ar300m16 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 12, 2026 - 19:57 vuln.today

CVE Published

Mar 12, 2026 - 18:16 nvd

CRITICAL 9.8

DescriptionCVE.org

GL-iNet GL-AR300M16 v4.3.11 was discovered to contain a command injection vulnerability via the module parameter in the M.get_system_log function. This vulnerability allows attackers to execute arbitrary commands via a crafted input.

AnalysisAI

GL-iNet GL-AR300M16 v4.3.11 contains another command injection vulnerability, this time via the module parameter in the M.get_system_log function. Part of a series of command injection flaws in this router model.

Technical ContextAI

The M.get_system_log function passes the module parameter to a shell command without sanitization (CWE-77). This is one of several command injection vulnerabilities in the GL-AR300M16 indicating a systemic lack of input validation across the router's web interface.