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CVE-2026-2234— HGiga｜C&Cm@il - Missing Authentication

Quick assessment

Affected
HGiga C&Cm@il package olln-base
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.

HGiga C&Cm@il是中国恒基（HGiga）公司的一个邮件协同系统。 HGiga C&Cm@il存在访问控制错误漏洞，该漏洞源于缺少身份验证，可能导致未经验证的远程攻击者读取和修改任意用户的邮件内容。

CVSS 9.1 · Critical EPSS 0.48% · P39

Possible ATT&CK Techniques 2 AI

T1530.001 T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-2234

Vulnerability Information
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Vulnerability Title
HGiga｜C&Cm@il - Missing Authentication
Source: CVE Program / CVE List V5
Vulnerability Description
C&Cm@il developed by HGiga has a Missing Authentication vulnerability, allowing unauthenticated remote attackers to read and modify any user's mail content.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
HGiga C&Cm@il 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HGiga C&Cm@il是中国恒基（HGiga）公司的一个邮件协同系统。 HGiga C&Cm@il存在访问控制错误漏洞，该漏洞源于缺少身份验证，可能导致未经验证的远程攻击者读取和修改任意用户的邮件内容。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
HGiga C&Cm@il package olln-base 0 ~ 7.0-978 -

II. Public POCs for CVE-2026-2234

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III. Intelligence Information for CVE-2026-2234

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Vendor Advisories for CVE-2026-2234 (1)

Same Patch Batch · HGiga · 2026-02-09 · 3 CVEs total

CVE-2026-2236 7.5 HIGH HGiga｜C&Cm@il - SQL Injection
CVE-2026-2235 6.5 MEDIUM HGiga｜C&Cm@il - SQL Injection

IV. Related Vulnerabilities

Same vendor: HGiga
Same weakness: CWE-306

V. Comments for CVE-2026-2234

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