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

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-12 · updated 2026-10-26
Weakness: CWE-1284

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.

Affected products

Cellopoint CelloOS: before 4.8.0 Build 20260316 — fixed in 4.8.0 Build 20260316

How to fix

Upgrade to a fixed version: Cellopoint CelloOS 4.8.0 Build 20260316. Check the vendor advisory for mitigations.

References

https://www.twcert.org.tw/en/cp-139-10965-3ce75-2.html
https://www.twcert.org.tw/tw/cp-132-10966-3258e-1.html

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