CVE-2026-26791

Name: CVE-2026-26791
Creator: NVD / NIST
Published: 2026-03-12T18:16:22.69+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.49%

Last modified Jun 17, 2026

CVE-2026-26791 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. GL-iNet GL-AR300M16 v4.3.11 was discovered to contain a command injection vulnerability via the string port parameter in the enable_echo_server function. This vulnerability allows attackers to execute arbitrary commands via a crafted input.. EPSS estimates a 2.49% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.49%

82.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gl-Inet	Ar300m16 Firmware	4.3.11

References

https://github.com/sezangel/IOT-vul/tree/main/GL-iNet/GL-AR300M16/enable_echo_serverExploit, Third Party Advisory

Timeline

Published: Mar 12, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-26791?

How severe is CVE-2026-26791?

CVE-2026-26791 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.49% probability of exploitation in the next 30 days.

How do I fix CVE-2026-26791?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-26791?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST