CVE-2026-12059 Cellopoint|CelloOS - Improper Access Control

High 8.7 Published Updated

Authenticated attackers can bypass SSH command restrictions in CelloOS to execute arbitrary operating system commands.

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-2026-12059?

CVE-2026-12059 is a high-severity authentication bypass vulnerability in Cellopoint CelloOS, published on 12 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The SSH service of CelloOS developed by Cellopoint has an Improper Access Control vulnerability, allowing authenticated remote attackers to bypass the enforced command restrictions and execute operating system commands outside the originally authorized scope.

Weakness: CWE-1284

Which versions are affected by CVE-2026-12059?

How do I fix CVE-2026-12059?

No fix has been published for CVE-2026-12059 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-12059 being exploited?

There is no known exploitation of CVE-2026-12059 in the wild and no public exploit code.

Sources

Also known as GHSA-qg44-88jp-h8xv.

Is CVE-2026-12059 in your software?

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