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CVE-2026-60042— Authentication bypass in com_check

Quick assessment

Affected
MB connect line mbCONNECT24
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.

未经身份验证的远程攻击者可对 函数实施身份验证绕过，进而可能触发其他系统上的网络流量并触发邮件告警。这可能导致因系统负载升高而出现部分服务不可用的情况。

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-60042

Vulnerability Information
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Vulnerability Title
Authentication bypass in com_check
Source: CVE Program / CVE List V5
Vulnerability Description
An unauthenticated remote attacker can perform an authentication bypass on the com_check function, potentially triggering traffic on other systems and email alerts. This can result in some loss of availability due to higher system loads.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
MB connect line mbCONNECT24 2.0.0 ~ 2.21.0 -
MB connect line mymbCONNECT24 2.0.0 ~ 2.21.0 -
Helmholz myREX24V2 2.0.0 ~ 2.21.0 -
Helmholz myREX24V2.virtual 2.0.0 ~ 2.21.0 -

II. Public POCs for CVE-2026-60042

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-60042

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Other References for CVE-2026-60042 (2)

Same Patch Batch · MB connect line · 2026-11-10 · 12 CVEs total

CVE-2026-60043 9.3 CRITICAL XSS in backend
CVE-2026-60041 8.1 HIGH CSRF in backend
CVE-2026-60040 7.5 HIGH DoS in backup creation
CVE-2026-60046 7.5 HIGH DoS via password reset
CVE-2026-60044 7.5 HIGH Static backup password
CVE-2026-60037 7.2 HIGH OpenSSL command injection in device importer
CVE-2026-60038 7.2 HIGH OpenSSL command injection in ImportPKCS12
CVE-2026-60039 7.2 HIGH Command injection in backup restore
CVE-2026-60035 7.2 HIGH Command injection in network auth
CVE-2026-60036 7.2 HIGH Command injection in patch activate
CVE-2026-60045 4.9 MEDIUM Arbitrary file upload

IV. Related Vulnerabilities

Same product: mbCONNECT24
Same vendor: MB connect line
Same weakness: CWE-639