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

High 8.6 Published 25 Apr 2026 Updated 27 Apr 2026

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

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

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, CWE-77

Which versions are affected by CVE-2026-6992?

It affects 1 product.

Products include 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.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

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: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-fvq2-f7cp-4g2w.