CVE-2026-4537 Cudy TR1200 ipsec.lua action_ipsec_conn command injection

Medium 5.1 Published Updated

Remote attackers can execute arbitrary commands on Cudy TR1200 routers via a command injection flaw in the IPsec configuration interface.

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-2026-4537?

CVE-2026-4537 is a medium-severity command injection vulnerability in Cudy TR1200, published on 22 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability was determined in Cudy TR1200 R46-2.4.15-20250721-164017. Impacted is the function action_ipsec_conn of the file /usr/bin/lib/lua/luci/controller/ipsec.lua. Executing a manipulation can lead to command injection. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. Upgrading the affected component is advised. The vendor explains, that "some other customer has reported this to us before. And we have fixed this."

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2026-4537?

How do I fix CVE-2026-4537?

No fix has been published for CVE-2026-4537 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-2026-4537 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4537 exists.

Sources

Also known as GHSA-cgfg-qq46-f464.

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