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CRITICAL

CVE-2026-18601

CVSS v3

9.8

CRITICAL

EPSS Score

2.4 %

exploit probability

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A vulnerability was found in GL.iNet GL-MT3000 up to 4.4.5. This impacts the function ovpn-client.check_config of the file /cgi-bin/glc of the component ovpn-client.so Native Plugin. Performing a manipulation of the argument filename results in command injection. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

Technical details

CVSS v3 Vector
3.1
Published
2026-08-03
Last Modified
2026-08-03

Frequently asked questions

What is CVE-2026-18601?

A vulnerability was found in GL.iNet GL-MT3000 up to 4.4.5. This impacts the function ovpn-client.check_config of the file /cgi-bin/glc of the component ovpn-client.so Native Plugin. Performing a manipulation of the argument filename results in command injection. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

Is CVE-2026-18601 actively exploited?

Active exploitation of CVE-2026-18601 has not been confirmed. The EPSS score is 2.4%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-18601?

CVE-2026-18601 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string 3.1.

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