CVE-2026-36841 Command injection in n/a

Critical 9.8 Published Updated

Attackers can execute arbitrary commands on TOTOLINK N200RE V5 routers via the formMapDelDevice function parameters.

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

What is CVE-2026-36841?

CVE-2026-36841 is a critical command injection vulnerability in n/a, published on 29 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

TOTOLINK N200RE V5 was discovered to contain a command injection vulnerability via the macstr and bandstr parameters in the formMapDelDevice function.

Weakness: CWE-77

Which versions are affected by CVE-2026-36841?

How do I fix CVE-2026-36841?

No fix has been published for CVE-2026-36841 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-2026-36841 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-36841 exists.

Sources

Also known as GHSA-3hw6-vmjp-6cj5.

Is CVE-2026-36841 in your software?

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