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CVE-2026-24032

Quick assessment

Affected
Siemens SINEC NMS
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.

Siemens SINEC NMS是德国西门子（Siemens）公司的 一个网络管理系统 (NMS)，该系统可用于全天候集中监控、管理和配置具有数万台设备的工业网络，包括与安全相关的领域。 Siemens SINEC NMS V4.0 SP3之前版本存在数据伪造问题漏洞，该漏洞源于UMC组件中用户身份验证不足，可能导致未经身份验证的远程攻击者绕过身份验证并获得未经授权的访问权限。

CVSS 7.3 · High EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-24032

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in SINEC NMS (All versions < V4.0 SP3 with UMC). The affected application contains an authentication weakness due to insufficient validation of user identity in the UMC component. This could allow an unauthenticated remote attacker to bypass authentication and gain unauthorized access to the application. (ZDI-CAN-27564)
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens SINEC NMS 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SINEC NMS是德国西门子（Siemens）公司的 一个网络管理系统 (NMS)，该系统可用于全天候集中监控、管理和配置具有数万台设备的工业网络，包括与安全相关的领域。 Siemens SINEC NMS V4.0 SP3之前版本存在数据伪造问题漏洞，该漏洞源于UMC组件中用户身份验证不足，可能导致未经身份验证的远程攻击者绕过身份验证并获得未经授权的访问权限。
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
Siemens SINEC NMS 0 ~ V4.0 SP3 -

II. Public POCs for CVE-2026-24032

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III. Intelligence Information for CVE-2026-24032

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Same Patch Batch · Siemens · 2026-04-14 · 5 CVEs total

CVE-2026-27668 8.8 HIGH Siemens RUGGEDCOM CROSSBOW Secure Access Manager Primary 安全漏洞
CVE-2026-25654 8.8 HIGH Siemens SINEC NMS 安全漏洞
CVE-2026-33892 7.1 HIGH Siemens Industrial Edge Management 安全漏洞
CVE-2025-40745 3.7 LOW Siemens多款产品 信任管理问题漏洞

IV. Related Vulnerabilities

Same product: SINEC NMS
Same vendor: Siemens
Same weakness: CWE-347

V. Comments for CVE-2026-24032

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