CVE-2026-27662_CVE-2026-27662

7.7 / 10

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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.

Basic Information

ID CVE-2026-27662

Source siemens

Published May 12, 2026 at 08:21

Affected Product

Vendor Siemens

Product SIMATIC HMI MTP1000 Unified Comfort Panel

Affected Versions Siemens SIMATIC HMI MTP1000 Unified Comfort Panel 0
Siemens SIMATIC HMI MTP1000 Unified Comfort Panel hygienic 0
Siemens SIMATIC HMI MTP1000 Unified Comfort Panel hygienic neutral design 0
Siemens SIMATIC HMI MTP1000, Unified Comfort Panel neutral 0
Siemens SIMATIC HMI MTP1200 Comfort Pro for stand (expandable, flange at the bottom) 0
Siemens SIMATIC HMI MTP1200 Comfort Pro for support arm (expandable, round tube) and extension unit 0
Siemens SIMATIC HMI MTP1200 Comfort Pro for support arm (not extendable, flange on top) 0
Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for stand (expandable, flange at the bottom) 0
Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio 0
Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (not extendable, flange on top) 0
Siemens SIMATIC HMI MTP1200 Unified Comfort Panel 0
Siemens SIMATIC HMI MTP1200 Unified Comfort Panel hygienic 0
Siemens SIMATIC HMI MTP1200 Unified Comfort Panel hygienic neutral design 0
Siemens SIMATIC HMI MTP1200 Unified Comfort Panel neutral design 0
Siemens SIMATIC HMI MTP1500 Comfort Pro for stand (expandable, flange at the bottom) 0
Siemens SIMATIC HMI MTP1500 Comfort Pro for support arm (expandable, round tube) and extension unit 0
Siemens SIMATIC HMI MTP1500 Comfort Pro for support arm (not extendable, flange on top) 0
Siemens SIMATIC HMI MTP1500 Comfort Pro neutral design for stand (expandable, flange at the bottom) 0
Siemens SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm (expandable, round tube) and extensio 0
Siemens SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm (not extendable, flange on top) 0
Siemens SIMATIC HMI MTP1500 Unified Comfort Panel 0
Siemens SIMATIC HMI MTP1500 Unified Comfort Panel hygienic 0
Siemens SIMATIC HMI MTP1500 Unified Comfort Panel hygienic neutral design 0
Siemens SIMATIC HMI MTP1500 Unified Comfort Panel neutral design 0
Siemens SIMATIC HMI MTP1900 Comfort Pro for stand (expandable, flange at the bottom) 0
Siemens SIMATIC HMI MTP1900 Comfort Pro for support arm (expandable, round tube) and extension unit 0
Siemens SIMATIC HMI MTP1900 Comfort Pro for support arm (not extendable, flange on top) 0
Siemens SIMATIC HMI MTP1900 Comfort Pro neutral design for stand (expandable, flange at the bottom) 0
Siemens SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm (expandable, round tube) and extensio 0
Siemens SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm (not extendable, flange on top) 0
Siemens SIMATIC HMI MTP1900 Unified Comfort Panel 0
Siemens SIMATIC HMI MTP1900 Unified Comfort Panel hygienic 0
Siemens SIMATIC HMI MTP1900 Unified Comfort Panel hygienic neutral design 0
Siemens SIMATIC HMI MTP1900 Unified Comfort Panel neutral design 0
Siemens SIMATIC HMI MTP2200 Comfort Pro for stand (expandable, flange at the bottom) 0
Siemens SIMATIC HMI MTP2200 Comfort Pro for support arm (expandable, round tube) and extension unit 0
Siemens SIMATIC HMI MTP2200 Comfort Pro for support arm (not extendable, flange on top) 0
Siemens SIMATIC HMI MTP2200 Comfort Pro neutral design for stand (expandable, flange at the bottom) 0
Siemens SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio 0
Siemens SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm (not extendable, flange on top) 0
Siemens SIMATIC HMI MTP2200 Unified Comfort Hygienic 0
Siemens SIMATIC HMI MTP2200 Unified Comfort Hygienic neutral design 0
Siemens SIMATIC HMI MTP2200 Unified Comfort Panel 0
Siemens SIMATIC HMI MTP2200 Unified Comfort Panel neutral design 0
Siemens SIMATIC HMI MTP700 Unified Comfort Panel 0
Siemens SIMATIC HMI MTP700 Unified Comfort Panel hygienic neutral design 0
Siemens SIMATIC HMI MTP700 Unified Comfort Panel hygienic neutral design 0
Siemens SIMATIC HMI MTP700, Unified Comfort Panel neutral design 0
Siemens SIPLUS HMI MTP1000 Unified Comfort 0
Siemens SIPLUS HMI MTP1200 Unified Comfort 0
Siemens SIPLUS HMI MTP700 Unified Comfort 0

CWE Classification

CWE-1188

References

cert-portal.siemens.com /productcert/html/ssa-387223.html

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    "description": "Affected devices do not properly restrict access to the web browser via the Control Panel when no corresponding security mechanisms are in place.\r\nThis 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.",
    "published": "2026-05-12T08:21:13.221Z",
    "modified": "2026-05-12T08:21:13.221Z",
    "type": "cve",
    "title": "CVE-2026-27662",
    "source": "siemens",
    "references": "https://cert-portal.siemens.com/productcert/html/ssa-387223.html",
    "id": "CVE-2026-27662",
    "bulletinFamily": "",
    "cwe": [
        "CWE-1188"
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    "cvelist": null,
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    "sourceHref": "",
    "cvss": {
        "score": 7.7,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
        "version": "3.1"
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    "cvss3": {
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        "privilegesRequired": "",
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        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "SIMATIC HMI MTP1000 Unified Comfort Panel",
    "version": "0",
    "vendor": "Siemens",
    "ai_description": "",
    "ai_severity": "",
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    "ai_score": 0
}