CVE-2026-27662

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.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.5 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://cert-portal.siemens.com/productcert/html/ssa-387223.html

Configurations

No configuration.

History

No history.

Information

Published : 2026-05-12 10:16

Updated : 2026-06-17 10:27

NVD link : CVE-2026-27662

Mitre link : CVE-2026-27662

CVE.ORG link : CVE-2026-27662

JSON object : View

Products Affected

No product.

CWE

CWE-1188

Initialization of a Resource with an Insecure Default

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"defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC HMI MTP2200 Unified Comfort Hygienic", "versions": [{"status": "affected", "version": "0", "lessThan": "V21", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC HMI MTP2200 Unified Comfort Hygienic neutral design", "versions": [{"status": "affected", "version": "0", "lessThan": "V21", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC HMI MTP2200 Unified Comfort Panel", "versions": [{"status": "affected", "version": "0", "lessThan": "V21", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC HMI MTP2200 Unified Comfort Panel neutral design", "versions": [{"status": "affected", "version": "0", "lessThan": "V21", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC HMI MTP700\u00a0Unified Comfort Panel", "versions": [{"status": "affected", "version": "0", "lessThan": "V21", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC HMI MTP700 Unified Comfort Panel hygienic neutral design", "versions": [{"status": "affected", "version": "0", "lessThan": "V21", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC HMI MTP700 Unified Comfort Panel hygienic neutral design", "versions": [{"status": "affected", "version": "0", "lessThan": "V21", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC HMI MTP700, Unified Comfort Panel neutral design", "versions": [{"status": "affected", "version": "0", "lessThan": "V21", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS HMI MTP1000 Unified Comfort", "versions": [{"status": "affected", "version": "0", "lessThan": "V21", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS HMI MTP1200 Unified Comfort", "versions": [{"status": "affected", "version": "0", "lessThan": "V21", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS HMI MTP700 Unified Comfort", "versions": [{"status": "affected", "version": "0", "lessThan": "V21", "versionType": "custom"}], "defaultStatus": "unknown"}]}], "published": "2026-05-12T10:16:45.540", "references": [{"url": "https://cert-portal.siemens.com/productcert/html/ssa-387223.html", "source": "productcert@siemens.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "productcert@siemens.com", "description": [{"lang": "en", "value": "CWE-1188"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-06-17T10:27:28.783", "sourceIdentifier": "productcert@siemens.com"}