CVE-2020-37052 AirControl 1.4.2 - PreAuth Remote Code Execution

Critical 9.3 Published Updated

Unauthenticated attackers can execute arbitrary system commands via Java expression injection in the AirControl web interface.

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-2020-37052?

CVE-2020-37052 is a critical code injection vulnerability in Ubiquiti, Inc. AirControl, published on 30 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

AirControl 1.4.2 contains a pre-authentication remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary system commands through malicious Java expression injection. Attackers can exploit the /.seam endpoint by crafting a specially constructed URL with embedded Java expressions to run commands with the application's system privileges.

Weakness: CWE-94

Which versions are affected by CVE-2020-37052?

How do I fix CVE-2020-37052?

No fix has been published for CVE-2020-37052 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2020-37052 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37052 exists.

Sources

Also known as GHSA-xwp5-mjfv-75pj.

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