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CVE-2026-27662

CVSS 7.7 · High EPSS 0.03% · P7
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I. Basic Information for CVE-2026-27662

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Affected devices do not properly restrict access to the web browser via the Control Panel when no corresponding security mechanisms are in place. This could allow an unauthenticated attacker to gain unauthorized access to the web browser, potentially enabling the discovery of backdoors, performing unauthorized actions, or exploiting misconfigurations that may lead to further system compromise.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不安全的默认资源初始化
Source: NVD (National Vulnerability Database)
Vulnerability Title
Siemens SIMATIC HMI Comfort Panels 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIMATIC HMI Comfort Panels是德国西门子（Siemens）公司的一款触摸面板设备。 Siemens SIMATIC HMI Comfort Panels存在安全漏洞，该漏洞源于未正确限制通过控制面板访问Web浏览器，可能导致未经身份验证的攻击者获得未授权访问，可能发现后门、执行未授权操作或利用配置错误导致进一步系统被攻破。以下产品受到影响：SIMATIC HMI MTP1000 Unified Comfort Panel、SIMATIC HMI MTP1000 Un
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

VendorProductAffected VersionsCPESubscribe
SiemensSIMATIC HMI MTP1000 Unified Comfort Panel 0 ~ V21 -
SiemensSIMATIC HMI MTP1000 Unified Comfort Panel hygienic 0 ~ V21 -
SiemensSIMATIC HMI MTP1000 Unified Comfort Panel hygienic neutral design 0 ~ V21 -
SiemensSIMATIC HMI MTP1000, Unified Comfort Panel neutral 0 ~ V21 -
SiemensSIMATIC HMI MTP1200 Comfort Pro for stand (expandable, flange at the bottom) 0 ~ V21 -
SiemensSIMATIC HMI MTP1200 Comfort Pro for support arm (expandable, round tube) and extension unit 0 ~ V21 -
SiemensSIMATIC HMI MTP1200 Comfort Pro for support arm (not extendable, flange on top) 0 ~ V21 -
SiemensSIMATIC HMI MTP1200 Comfort Pro neutral design for stand (expandable, flange at the bottom) 0 ~ V21 -
SiemensSIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio 0 ~ V21 -
SiemensSIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (not extendable, flange on top) 0 ~ V21 -
SiemensSIMATIC HMI MTP1200 Unified Comfort Panel 0 ~ V21 -
SiemensSIMATIC HMI MTP1200 Unified Comfort Panel hygienic 0 ~ V21 -
SiemensSIMATIC HMI MTP1200 Unified Comfort Panel hygienic neutral design 0 ~ V21 -
SiemensSIMATIC HMI MTP1200 Unified Comfort Panel neutral design 0 ~ V21 -
SiemensSIMATIC HMI MTP1500 Comfort Pro for stand (expandable, flange at the bottom) 0 ~ V21 -
SiemensSIMATIC HMI MTP1500 Comfort Pro for support arm (expandable, round tube) and extension unit 0 ~ V21 -
SiemensSIMATIC HMI MTP1500 Comfort Pro for support arm (not extendable, flange on top) 0 ~ V21 -
SiemensSIMATIC HMI MTP1500 Comfort Pro neutral design for stand (expandable, flange at the bottom) 0 ~ V21 -
SiemensSIMATIC HMI MTP1500 Comfort Pro neutral design for support arm (expandable, round tube) and extensio 0 ~ V21 -
SiemensSIMATIC HMI MTP1500 Comfort Pro neutral design for support arm (not extendable, flange on top) 0 ~ V21 -
SiemensSIMATIC HMI MTP1500 Unified Comfort Panel 0 ~ V21 -
SiemensSIMATIC HMI MTP1500 Unified Comfort Panel hygienic 0 ~ V21 -
SiemensSIMATIC HMI MTP1500 Unified Comfort Panel hygienic neutral design 0 ~ V21 -
SiemensSIMATIC HMI MTP1500 Unified Comfort Panel neutral design 0 ~ V21 -
SiemensSIMATIC HMI MTP1900 Comfort Pro for stand (expandable, flange at the bottom) 0 ~ V21 -
SiemensSIMATIC HMI MTP1900 Comfort Pro for support arm (expandable, round tube) and extension unit 0 ~ V21 -
SiemensSIMATIC HMI MTP1900 Comfort Pro for support arm (not extendable, flange on top) 0 ~ V21 -
SiemensSIMATIC HMI MTP1900 Comfort Pro neutral design for stand (expandable, flange at the bottom) 0 ~ V21 -
SiemensSIMATIC HMI MTP1900 Comfort Pro neutral design for support arm (expandable, round tube) and extensio 0 ~ V21 -
SiemensSIMATIC HMI MTP1900 Comfort Pro neutral design for support arm (not extendable, flange on top) 0 ~ V21 -
SiemensSIMATIC HMI MTP1900 Unified Comfort Panel 0 ~ V21 -
SiemensSIMATIC HMI MTP1900 Unified Comfort Panel hygienic 0 ~ V21 -
SiemensSIMATIC HMI MTP1900 Unified Comfort Panel hygienic neutral design 0 ~ V21 -
SiemensSIMATIC HMI MTP1900 Unified Comfort Panel neutral design 0 ~ V21 -
SiemensSIMATIC HMI MTP2200 Comfort Pro for stand (expandable, flange at the bottom) 0 ~ V21 -
SiemensSIMATIC HMI MTP2200 Comfort Pro for support arm (expandable, round tube) and extension unit 0 ~ V21 -
SiemensSIMATIC HMI MTP2200 Comfort Pro for support arm (not extendable, flange on top) 0 ~ V21 -
SiemensSIMATIC HMI MTP2200 Comfort Pro neutral design for stand (expandable, flange at the bottom) 0 ~ V21 -
SiemensSIMATIC HMI MTP2200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio 0 ~ V21 -
SiemensSIMATIC HMI MTP2200 Comfort Pro neutral design for support arm (not extendable, flange on top) 0 ~ V21 -
SiemensSIMATIC HMI MTP2200 Unified Comfort Hygienic 0 ~ V21 -
SiemensSIMATIC HMI MTP2200 Unified Comfort Hygienic neutral design 0 ~ V21 -
SiemensSIMATIC HMI MTP2200 Unified Comfort Panel 0 ~ V21 -
SiemensSIMATIC HMI MTP2200 Unified Comfort Panel neutral design 0 ~ V21 -
SiemensSIMATIC HMI MTP700 Unified Comfort Panel 0 ~ V21 -
SiemensSIMATIC HMI MTP700 Unified Comfort Panel hygienic neutral design 0 ~ V21 -
SiemensSIMATIC HMI MTP700 Unified Comfort Panel hygienic neutral design 0 ~ V21 -
SiemensSIMATIC HMI MTP700, Unified Comfort Panel neutral design 0 ~ V21 -
SiemensSIPLUS HMI MTP1000 Unified Comfort 0 ~ V21 -
SiemensSIPLUS HMI MTP1200 Unified Comfort 0 ~ V21 -
SiemensSIPLUS HMI MTP700 Unified Comfort 0 ~ V21 -

II. Public POCs for CVE-2026-27662

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III. Intelligence Information for CVE-2026-27662

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Same Patch Batch · Siemens · 2026-05-12 · 20 CVEs total

CVE-2026-415519.1 CRITICALSiemens ROS# 安全漏洞
CVE-2025-409499.1 CRITICALSiemens多款产品 操作系统命令注入漏洞
CVE-2026-229249.1 CRITICALSiemens SIMATIC CN 4100 访问控制错误漏洞
CVE-2026-257869.1 CRITICALSiemens多款产品 跨站脚本漏洞
CVE-2026-257879.1 CRITICALSiemens SIMATIC 跨站脚本漏洞
CVE-2025-409468.3 HIGHSiemens多款产品 安全漏洞
CVE-2026-444127.8 HIGHSiemens Solid Edge 安全漏洞
CVE-2026-444117.8 HIGHSiemens Solid Edge 缓冲区错误漏洞
CVE-2025-408337.5 HIGHSiemens多款产品 代码问题漏洞
CVE-2026-338937.5 HIGHSiemens多款产品 信任管理问题漏洞
CVE-2026-229257.5 HIGHSiemens SIMATIC CN 4100 安全漏洞
CVE-2025-409477.5 HIGHSiemens RUGGEDCOM 操作系统命令注入漏洞
CVE-2026-338627.3 HIGHSiemens Teamcenter 跨站脚本漏洞
CVE-2026-257897.1 HIGHSiemens多款产品 跨站脚本漏洞
CVE-2025-409486.8 MEDIUMSiemens多款产品 参数注入漏洞
CVE-2026-411256.0 MEDIUMSiemens多款产品 SQL注入漏洞
CVE-2024-540175.3 MEDIUMSiemens SIPROTEC 5 安全漏洞
CVE-2026-421775.3 MEDIUMlinux-entra-sso: PRT SSO cookie can leak to attacker-controlled hosts when broad host perm
CVE-2025-12659Heap-based buffer overflow in Siemens Simcenter Femap

IV. Related Vulnerabilities

Same vendor: Siemens
Same weakness: CWE-1188

V. Comments for CVE-2026-27662

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