# CVE-2026-6992: Linksys MR9600 JNAP Action run_central2.sh BTRequestGetSmartConnectStatus os command injection

> Remote attackers can execute arbitrary OS commands on Linksys MR9600 routers via the JNAP Action Handler, requiring no vendor response for a fix.

- **Severity:** High 8.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Apr 2026
- **Updated:** 27 Apr 2026
- **Also known as:** GHSA-fvq2-f7cp-4g2w

## What is CVE-2026-6992?

CVE-2026-6992 is a high-severity command injection vulnerability in Linksys MR9600, published on 25 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability was identified in Linksys MR9600 2.0.6.206937. This affects the function BTRequestGetSmartConnectStatus of the file /etc/init.d/run_central2.sh of the component JNAP Action Handler. The manipulation of the argument pin leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2026-6992?

It affects 1 product.


Products: Linksys Mr9600 Firmware.

## How do I fix CVE-2026-6992?

No fix has been published for CVE-2026-6992 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-6992 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6992 exists.

Public exploit code:

- Vulnerability proof of concept reworked from https://github.com/utmost3/cve/issues/2 I take no credit for discovering the vulnerability. This is for educational and portfolio purposes only. (github_poc): https://github.com/nicholas-howland/CVE-2026-6992-PoC

## Other vulnerabilities in Linksys MR9600

- [CVE-2026-4558](https://insights.sbomify.com/CVE-2026-4558/): Linksys MR9600 SmartConnect.lua smartConnectConfigure os command injection (high 8.7)
- [CVE-2026-25603](https://insights.sbomify.com/CVE-2026-25603/): Path Traversal vulnerability in Linksys MR9600, Linksys MX4200 (medium 6.6)
- [CVE-2022-24372](https://insights.sbomify.com/CVE-2022-24372/): Path traversal in n/a (medium 4.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-6992 and fix it if it is affected.

What it is: CVE-2026-6992 is a high-severity command injection vulnerability in Linksys MR9600, published on 25 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6992 exists.

Affected product: Linksys MR9600. 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-2026-6992/ (Markdown: https://insights.sbomify.com/CVE-2026-6992/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-6992
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6992
- OSV: https://osv.dev/vulnerability/CVE-2026-6992

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-6992/
Summaries are generated and may contain mistakes; the official description above is the record.