CVE-2026-84059 ICP DAS UA-2200/UA-5200 CGI ArmAngstromInstructionSet command injection
Remote attackers can execute arbitrary commands via the SetHostname CGI endpoint in ICP DAS UA-2200 and UA-5200 devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84059?
CVE-2026-84059 is a medium-severity command injection vulnerability in ICP DAS UA-2200, published on 1 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in ICP DAS UA-2200 and UA-5200 up to 20260704. The affected element is the function ArmAngstromInstructionSet of the file /CGI?RestApi=SetHostname. Executing a manipulation of the argument ParameterArray can lead to command injection. The attack can be executed remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-84059?
How do I fix CVE-2026-84059?
No fix has been published for CVE-2026-84059 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-2026-84059 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-84059 exists.
Sources
Also known as GHSA-h952-ggq2-fp3c.