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CVE-2026-27662

Quick assessment

Affected
Siemens SIMATIC HMI MTP1000 Unified Comfort Panel
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 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

CVSS 7.7 · High EPSS 0.17% · P5

Affected Version Matrix 51

VendorProduct Version RangeStatus
Siemens SIMATIC HMI MTP1000 Unified Comfort Panel < V21 affected
Siemens SIMATIC HMI MTP1000 Unified Comfort Panel hygienic < V21 affected
Siemens SIMATIC HMI MTP1000 Unified Comfort Panel hygienic neutral design < V21 affected
Siemens SIMATIC HMI MTP1000, Unified Comfort Panel neutral < V21 affected
Siemens SIMATIC HMI MTP1200 Comfort Pro for stand (expandable, flange at the bottom) < V21 affected
Siemens SIMATIC HMI MTP1200 Comfort Pro for support arm (expandable, round tube) and extension unit < V21 affected
Siemens SIMATIC HMI MTP1200 Comfort Pro for support arm (not extendable, flange on top) < V21 affected
Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for stand (expandable, flange at the bottom) < V21 affected
Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio < V21 affected
Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (not extendable, flange on top) < V21 affected
Siemens SIMATIC HMI MTP1200 Unified Comfort Panel < V21 affected
Siemens SIMATIC HMI MTP1200 Unified Comfort Panel hygienic < V21 affected
Siemens SIMATIC HMI MTP1200 Unified Comfort Panel hygienic neutral design < V21 affected
Siemens SIMATIC HMI MTP1200 Unified Comfort Panel neutral design < V21 affected
Siemens SIMATIC HMI MTP1500 Comfort Pro for stand (expandable, flange at the bottom) < V21 affected
Siemens SIMATIC HMI MTP1500 Comfort Pro for support arm (expandable, round tube) and extension unit < V21 affected
Siemens SIMATIC HMI MTP1500 Comfort Pro for support arm (not extendable, flange on top) < V21 affected
Siemens SIMATIC HMI MTP1500 Comfort Pro neutral design for stand (expandable, flange at the bottom) < V21 affected
Siemens SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm (expandable, round tube) and extensio < V21 affected
Siemens SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm (not extendable, flange on top) < V21 affected
Siemens SIMATIC HMI MTP1500 Unified Comfort Panel < V21 affected
Siemens SIMATIC HMI MTP1500 Unified Comfort Panel hygienic < V21 affected
Siemens SIMATIC HMI MTP1500 Unified Comfort Panel hygienic neutral design < V21 affected
Siemens SIMATIC HMI MTP1500 Unified Comfort Panel neutral design < V21 affected
Siemens SIMATIC HMI MTP1900 Comfort Pro for stand (expandable, flange at the bottom) < V21 affected
Siemens SIMATIC HMI MTP1900 Comfort Pro for support arm (expandable, round tube) and extension unit < V21 affected
Siemens SIMATIC HMI MTP1900 Comfort Pro for support arm (not extendable, flange on top) < V21 affected
Siemens SIMATIC HMI MTP1900 Comfort Pro neutral design for stand (expandable, flange at the bottom) < V21 affected
Siemens SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm (expandable, round tube) and extensio < V21 affected
Siemens SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm (not extendable, flange on top) < V21 affected
Siemens SIMATIC HMI MTP1900 Unified Comfort Panel < V21 affected
Siemens SIMATIC HMI MTP1900 Unified Comfort Panel hygienic < V21 affected
Siemens SIMATIC HMI MTP1900 Unified Comfort Panel hygienic neutral design < V21 affected
Siemens SIMATIC HMI MTP1900 Unified Comfort Panel neutral design < V21 affected
Siemens SIMATIC HMI MTP2200 Comfort Pro for stand (expandable, flange at the bottom) < V21 affected
Siemens SIMATIC HMI MTP2200 Comfort Pro for support arm (expandable, round tube) and extension unit < V21 affected
Siemens SIMATIC HMI MTP2200 Comfort Pro for support arm (not extendable, flange on top) < V21 affected
Siemens SIMATIC HMI MTP2200 Comfort Pro neutral design for stand (expandable, flange at the bottom) < V21 affected
Siemens SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio < V21 affected
Siemens SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm (not extendable, flange on top) < V21 affected
Siemens SIMATIC HMI MTP2200 Unified Comfort Hygienic < V21 affected
Siemens SIMATIC HMI MTP2200 Unified Comfort Hygienic neutral design < V21 affected
Siemens SIMATIC HMI MTP2200 Unified Comfort Panel < V21 affected
Siemens SIMATIC HMI MTP2200 Unified Comfort Panel neutral design < V21 affected
Siemens SIMATIC HMI MTP700 Unified Comfort Panel < V21 affected
Siemens SIMATIC HMI MTP700 Unified Comfort Panel hygienic neutral design < V21 affected
< V21 affected
Siemens SIMATIC HMI MTP700, Unified Comfort Panel neutral design < V21 affected
Siemens SIPLUS HMI MTP1000 Unified Comfort < V21 affected
Siemens SIPLUS HMI MTP1200 Unified Comfort < V21 affected
Siemens SIPLUS HMI MTP700 Unified Comfort < V21 affected
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I. Basic Information for CVE-2026-27662

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不安全的默认资源初始化
Source: CVE Program / CVE List V5
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

Vendor Product Affected Versions CPE Subscribe
Siemens SIMATIC HMI MTP1000 Unified Comfort Panel 0 ~ V21 -
Siemens SIMATIC HMI MTP1000 Unified Comfort Panel hygienic 0 ~ V21 -
Siemens SIMATIC HMI MTP1000 Unified Comfort Panel hygienic neutral design 0 ~ V21 -
Siemens SIMATIC HMI MTP1000, Unified Comfort Panel neutral 0 ~ V21 -
Siemens SIMATIC HMI MTP1200 Comfort Pro for stand (expandable, flange at the bottom) 0 ~ V21 -
Siemens SIMATIC HMI MTP1200 Comfort Pro for support arm (expandable, round tube) and extension unit 0 ~ V21 -
Siemens SIMATIC HMI MTP1200 Comfort Pro for support arm (not extendable, flange on top) 0 ~ V21 -
Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for stand (expandable, flange at the bottom) 0 ~ V21 -
Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio 0 ~ V21 -
Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (not extendable, flange on top) 0 ~ V21 -
Siemens SIMATIC HMI MTP1200 Unified Comfort Panel 0 ~ V21 -
Siemens SIMATIC HMI MTP1200 Unified Comfort Panel hygienic 0 ~ V21 -
Siemens SIMATIC HMI MTP1200 Unified Comfort Panel hygienic neutral design 0 ~ V21 -
Siemens SIMATIC HMI MTP1200 Unified Comfort Panel neutral design 0 ~ V21 -
Siemens SIMATIC HMI MTP1500 Comfort Pro for stand (expandable, flange at the bottom) 0 ~ V21 -
Siemens SIMATIC HMI MTP1500 Comfort Pro for support arm (expandable, round tube) and extension unit 0 ~ V21 -
Siemens SIMATIC HMI MTP1500 Comfort Pro for support arm (not extendable, flange on top) 0 ~ V21 -
Siemens SIMATIC HMI MTP1500 Comfort Pro neutral design for stand (expandable, flange at the bottom) 0 ~ V21 -
Siemens SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm (expandable, round tube) and extensio 0 ~ V21 -
Siemens SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm (not extendable, flange on top) 0 ~ V21 -
Siemens SIMATIC HMI MTP1500 Unified Comfort Panel 0 ~ V21 -
Siemens SIMATIC HMI MTP1500 Unified Comfort Panel hygienic 0 ~ V21 -
Siemens SIMATIC HMI MTP1500 Unified Comfort Panel hygienic neutral design 0 ~ V21 -
Siemens SIMATIC HMI MTP1500 Unified Comfort Panel neutral design 0 ~ V21 -
Siemens SIMATIC HMI MTP1900 Comfort Pro for stand (expandable, flange at the bottom) 0 ~ V21 -
Siemens SIMATIC HMI MTP1900 Comfort Pro for support arm (expandable, round tube) and extension unit 0 ~ V21 -
Siemens SIMATIC HMI MTP1900 Comfort Pro for support arm (not extendable, flange on top) 0 ~ V21 -
Siemens SIMATIC HMI MTP1900 Comfort Pro neutral design for stand (expandable, flange at the bottom) 0 ~ V21 -
Siemens SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm (expandable, round tube) and extensio 0 ~ V21 -
Siemens SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm (not extendable, flange on top) 0 ~ V21 -

II. Public POCs for CVE-2026-27662

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III. Intelligence Information for CVE-2026-27662

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Vendor Advisories for CVE-2026-27662 (1)

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

CVE-2025-40949 9.1 CRITICAL Siemens多款产品 操作系统命令注入漏洞
CVE-2026-22924 9.1 CRITICAL Siemens SIMATIC CN 4100 访问控制错误漏洞
CVE-2026-41551 9.1 CRITICAL Siemens ROS# 安全漏洞
CVE-2026-25786 9.1 CRITICAL Siemens多款产品 跨站脚本漏洞
CVE-2026-25787 9.1 CRITICAL Siemens SIMATIC 跨站脚本漏洞
CVE-2025-40946 8.3 HIGH Siemens多款产品 安全漏洞
CVE-2025-12659 7.8 HIGH Heap-based buffer overflow in Siemens Simcenter Femap
CVE-2026-44412 7.8 HIGH Siemens Solid Edge 安全漏洞
CVE-2026-44411 7.8 HIGH Siemens Solid Edge 缓冲区错误漏洞
CVE-2025-40833 7.5 HIGH Siemens多款产品 代码问题漏洞
CVE-2026-33893 7.5 HIGH Siemens多款产品 信任管理问题漏洞
CVE-2026-22925 7.5 HIGH Siemens SIMATIC CN 4100 安全漏洞
CVE-2025-40947 7.5 HIGH Siemens RUGGEDCOM 操作系统命令注入漏洞
CVE-2026-33862 7.3 HIGH Siemens Teamcenter 跨站脚本漏洞
CVE-2026-25789 7.1 HIGH Siemens多款产品 跨站脚本漏洞
CVE-2025-40948 6.8 MEDIUM Siemens多款产品 参数注入漏洞
CVE-2026-41125 6.0 MEDIUM Siemens多款产品 SQL注入漏洞
CVE-2024-54017 5.3 MEDIUM Siemens SIPROTEC 5 安全漏洞
CVE-2026-42177 5.3 MEDIUM linux-entra-sso: PRT SSO cookie can leak to attacker-controlled hosts when broad host perm

IV. Related Vulnerabilities

Same vendor: Siemens
Same weakness: CWE-1188

V. Comments for CVE-2026-27662

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