CVE-2026-12059
Deferred Deferred - Pending Action

Improper Access Control in CelloOS SSH Service

Publication date: 2026-06-12

Last updated on: 2026-06-12

Assigner: TWCERT/CC

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.

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Meta Information

Published
2026-06-12
Last Modified
2026-06-12
Generated
2026-07-02
AI Q&A
2026-06-12
EPSS Evaluated
2026-07-01
NVD
CVE-2026-12059
EUVD
EUVD-2026-36389

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
cellopoint celloos to 4.8.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-1284 The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

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Executive Summary

CVE-2026-12059 is an Improper Access Control vulnerability in the SSH service of CelloOS developed by Cellopoint. It allows authenticated remote attackers to bypass the enforced command restrictions and execute operating system commands outside the originally authorized scope.

Impact Analysis

This vulnerability can allow an authenticated remote attacker to execute unauthorized operating system commands on affected CelloOS systems. This could lead to unauthorized actions beyond the intended command restrictions, potentially compromising system integrity, confidentiality, and availability.

Mitigation Strategies

To mitigate the CVE-2026-12059 vulnerability, immediately update CelloOS to version 4.8.0 Build 20260316 or later, which contains the patch released on March 18, 2026.

For systems connected to the vendor update service, apply the online patch provided by the vendor.

For offline or isolated systems that cannot receive automatic updates, manually upgrade to the fixed release available on or after March 18, 2026.

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