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

Quick assessment

Affected
Cellopoint CelloOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cellopoint CelloOS是中国Cellopoint公司的一个邮件安全产品。 Cellopoint CelloOS存在输入验证错误漏洞，该漏洞源于SSH服务存在访问控制不当问题，可能导致经过身份验证的远程攻击者绕过强制命令限制并执行操作系统命令。

CVSS 8.8 · High EPSS 0.45% · P37

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
Cellopoint CelloOS < 4.8.0 Build 20260316 affected
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I. Basic Information for CVE-2026-12059

Vulnerability Information
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Vulnerability Title
Cellopoint｜CelloOS - Improper Access Control
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1284
Source: CVE Program / CVE List V5
Vulnerability Title
Cellopoint CelloOS 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cellopoint CelloOS是中国Cellopoint公司的一个邮件安全产品。 Cellopoint CelloOS存在输入验证错误漏洞，该漏洞源于SSH服务存在访问控制不当问题，可能导致经过身份验证的远程攻击者绕过强制命令限制并执行操作系统命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cellopoint CelloOS 0 ~ 4.8.0 Build 20260316 -

II. Public POCs for CVE-2026-12059

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III. Intelligence Information for CVE-2026-12059

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Vendor Advisories for CVE-2026-12059 (2)

IV. Related Vulnerabilities

Same product: CelloOS
Same vendor: Cellopoint
Same weakness: CWE-1284

V. Comments for CVE-2026-12059

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