# CVE-2026-11452: GL.iNet GL-MT3000 SET_USER_PWD glc FUN_0042e200 command injection

> Remote attackers can execute arbitrary commands via the password parameter in the SET_USER_PWD handler of GL.iNet routers.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Jun 2026
- **Updated:** 8 Jun 2026
- **Also known as:** GHSA-5qf6-3rw8-7jgg

## What is CVE-2026-11452?

CVE-2026-11452 is a medium-severity command injection vulnerability in GL.iNet GL-MT3000, published on 7 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability has been found in GL.iNet GL-MT3000 up to 4.4.5. Affected is the function FUN_0042e200 of the file /cgi-bin/glc of the component SET_USER_PWD Handler. The manipulation of the argument Password leads to command injection. The attack can be initiated remotely. Upgrading to version 4.8.1 is able to address this issue. The affected component should be upgraded. The vendor explains: " The current code escapes single quotes in the password parameter and handles it inside a shell single‑quote context. The payloads in the report, which rely on $() or backticks to trigger command substitution, are not executed under the current code path. We tested on a GL‑MT3000 device running firmware 4.8.1 using similar payloads, and no command‑execution marker file was created."

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2026-11452?


## How do I fix CVE-2026-11452?

No fix has been published for CVE-2026-11452 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-11452 being exploited?

There is no known exploitation of CVE-2026-11452 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11452 and fix it if it is affected.

What it is: CVE-2026-11452 is a medium-severity command injection vulnerability in GL.iNet GL-MT3000, published on 7 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-11452 in the wild and no public exploit code.

Affected product: GL.iNet GL-MT3000. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-11452/ (Markdown: https://insights.sbomify.com/CVE-2026-11452/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11452
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11452
- OSV: https://osv.dev/vulnerability/CVE-2026-11452

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-11452/
Summaries are generated and may contain mistakes; the official description above is the record.