PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-11452 GL.iNet CVE debrief

A command injection vulnerability has been discovered in GL.iNet GL-MT3000 up to 4.4.5. The vulnerability affects the SET_USER_PWD Handler in the /cgi-bin/glc file, specifically in the FUN_0042e200 function. The manipulation of the Password argument leads to command injection, allowing remote attackers to execute arbitrary commands. The vulnerability has a CVSS score of 6.9 and is classified as MEDIUM severity. To address this issue, users are recommended to upgrade to version 4.8.1 or later.

Vendor
GL.iNet
Product
GL-MT3000
CVSS
MEDIUM 6.9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-07
Original CVE updated
2026-07-23
Advisory published
2026-06-07
Advisory updated
2026-07-23

Who should care

Administrators and users of GL.iNet GL-MT3000 devices running firmware up to 4.4.5 should be aware of this vulnerability and take necessary actions to mitigate the risk.

Technical summary

The vulnerability is caused by improper handling of the Password argument in the SET_USER_PWD Handler of the /cgi-bin/glc file. This allows remote attackers to inject arbitrary commands. The vendor has addressed this issue in version 4.8.1, where the code now escapes single quotes in the password parameter and handles it inside a shell single-quote context, preventing command substitution.

Defensive priority

High

Recommended defensive actions

  • Upgrade to version 4.8.1 or later to address the vulnerability.
  • Review and monitor network traffic to detect potential exploitation attempts.

Evidence notes

The vulnerability was reported by an unknown source and is listed in the NVD database. The CVE record and NVD detail pages provide additional information about the vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11452 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11452

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11452 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11452

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.