CVE-2026-26793

CRITICAL
2026-03-12 [email protected]
9.8
CVSS 3.1
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CVSS Vector

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

2
Analysis Generated
Mar 12, 2026 - 19:57 vuln.today
CVE Published
Mar 12, 2026 - 19:16 nvd
CRITICAL 9.8

Tags

Command Injection Ar300m16 Firmware

Description

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

Analysis

GL-iNet GL-AR300M16 v4.3.11 has a command injection in the set_config function, adding to the growing list of injection vulnerabilities in this device. This is the fourth distinct command injection CVE for this router model.

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Remediation

Within 24 hours: Identify and inventory all GL-AR300M16 v4.3.11 devices across the organization; isolate affected devices from critical network segments if operationally feasible. Within 7 days: Implement network-level controls (WAF rules, IP whitelisting, segmentation) to restrict access to the set_config function; disable remote administration features if not essential; monitor for suspicious command patterns. …

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Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +49
POC: 0

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CVE-2026-26793 vulnerability details – vuln.today
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