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CVE-2026-27661

Quick assessment

Affected
Siemens SINEC Security Monitor
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 Security Monitor是德国西门子（Siemens）公司的一个工业安防监控器。 Siemens SINEC Security Monitor V4.9.0之前版本存在安全漏洞，该漏洞源于元数据泄露，可能导致SSM Server上的机密信息泄露。

CVSS 4.3 · Medium EPSS 0.27% · P17

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-27661

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 Security Monitor (All versions < V4.9.0). The affected application leaks confidential information in metadata, and files such as information on contributors and email address, on `SSM Server`.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1230
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens SINEC Security Monitor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SINEC Security Monitor是德国西门子（Siemens）公司的一个工业安防监控器。 Siemens SINEC Security Monitor V4.9.0之前版本存在安全漏洞，该漏洞源于元数据泄露，可能导致SSM Server上的机密信息泄露。
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 Security Monitor 0 ~ V4.9.0 -

II. Public POCs for CVE-2026-27661

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III. Intelligence Information for CVE-2026-27661

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Vendor Advisories for CVE-2026-27661 (1)

Same Patch Batch · Siemens · 2026-03-10 · 9 CVEs total

CVE-2025-40943 9.6 CRITICAL Siemens多款产品 跨站脚本漏洞
CVE-2026-25573 7.4 HIGH Siemens SICAM SIAPP SDK 安全漏洞
CVE-2026-25570 7.4 HIGH Siemens SICAM SIAPP SDK 安全漏洞
CVE-2026-25569 7.4 HIGH Siemens SICAM SIAPP SDK 缓冲区错误漏洞
CVE-2026-25605 6.7 MEDIUM Siemens SICAM SIAPP SDK 安全漏洞
CVE-2026-25572 5.1 MEDIUM Siemens SICAM SIAPP SDK 安全漏洞
CVE-2026-25571 5.1 MEDIUM Siemens SICAM SIAPP SDK 安全漏洞
CVE-2025-27769 2.6 LOW Siemens Heliox Flex 180 kW EV Charging Station和Siemens Heliox Mobile DC 40 kW EV Charging

IV. Related Vulnerabilities

Same product: SINEC Security Monitor
Same vendor: Siemens
Same weakness: CWE-1230

V. Comments for CVE-2026-27661

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