CVE-2026-27662 (GCVE-0-2026-27662)

Vulnerability from cvelistv5 – Published: 2026-05-12 08:21 – Updated: 2026-05-13 01:48
VLAI?
Summary
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.
Severity ?
7.7 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
7 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-1188 - Initialization of a Resource with an Insecure Default
Assigner
References
Impacted products
Vendor Product Version
Siemens SIMATIC HMI MTP1000 Unified Comfort Panel Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1000 Unified Comfort Panel hygienic Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1000 Unified Comfort Panel hygienic neutral design Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1000, Unified Comfort Panel neutral Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1200 Comfort Pro for stand (expandable, flange at the bottom) Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1200 Comfort Pro for support arm (expandable, round tube) and extension unit Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1200 Comfort Pro for support arm (not extendable, flange on top) Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for stand (expandable, flange at the bottom) Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (not extendable, flange on top) Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1200 Unified Comfort Panel Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1200 Unified Comfort Panel hygienic Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1200 Unified Comfort Panel hygienic neutral design Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1200 Unified Comfort Panel neutral design Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1500 Comfort Pro for stand (expandable, flange at the bottom) Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1500 Comfort Pro for support arm (expandable, round tube) and extension unit Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP1500 Comfort Pro for support arm (not extendable, flange on top) Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP1500 Comfort Pro neutral design for stand (expandable, flange at the bottom) Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm (expandable, round tube) and extensio Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm (not extendable, flange on top) Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1500 Unified Comfort Panel Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1500 Unified Comfort Panel hygienic Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1500 Unified Comfort Panel hygienic neutral design Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1500 Unified Comfort Panel neutral design Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1900 Comfort Pro for stand (expandable, flange at the bottom) Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1900 Comfort Pro for support arm (expandable, round tube) and extension unit Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP1900 Comfort Pro for support arm (not extendable, flange on top) Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP1900 Comfort Pro neutral design for stand (expandable, flange at the bottom) Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm (expandable, round tube) and extensio Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm (not extendable, flange on top) Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1900 Unified Comfort Panel Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1900 Unified Comfort Panel hygienic Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1900 Unified Comfort Panel hygienic neutral design Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP1900 Unified Comfort Panel neutral design Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP2200 Comfort Pro for stand (expandable, flange at the bottom) Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP2200 Comfort Pro for support arm (expandable, round tube) and extension unit Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP2200 Comfort Pro for support arm (not extendable, flange on top) Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP2200 Comfort Pro neutral design for stand (expandable, flange at the bottom) Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm (not extendable, flange on top) Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP2200 Unified Comfort Hygienic Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP2200 Unified Comfort Hygienic neutral design Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP2200 Unified Comfort Panel Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP2200 Unified Comfort Panel neutral design Affected: 0 , < V21 (custom)
Create a notification for this product.
Siemens SIMATIC HMI MTP700 Unified Comfort Panel Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP700 Unified Comfort Panel hygienic neutral design Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP700 Unified Comfort Panel hygienic neutral design Affected: 0 , < V21 (custom)
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Siemens SIMATIC HMI MTP700, Unified Comfort Panel neutral design Affected: 0 , < V21 (custom)
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Siemens SIPLUS HMI MTP1000 Unified Comfort Affected: 0 , < V21 (custom)
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Siemens SIPLUS HMI MTP1200 Unified Comfort Affected: 0 , < V21 (custom)
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Siemens SIPLUS HMI MTP700 Unified Comfort Affected: 0 , < V21 (custom)
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            }
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          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC HMI MTP2200 Comfort Pro for stand (expandable, flange at the bottom)",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V21",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC HMI MTP2200 Comfort Pro for support arm (expandable, round tube) and extension unit",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V21",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC HMI MTP2200 Comfort Pro for support arm (not extendable, flange on top)",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V21",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC HMI MTP2200 Comfort Pro neutral design for stand (expandable, flange at the bottom)",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V21",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V21",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm (not extendable, flange on top)",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V21",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC HMI MTP2200 Unified Comfort Hygienic",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V21",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC HMI MTP2200 Unified Comfort Hygienic neutral design",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V21",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
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        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC HMI MTP2200 Unified Comfort Panel",
          "vendor": "Siemens",
          "versions": [
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              "lessThan": "V21",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
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          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC HMI MTP2200 Unified Comfort Panel neutral design",
          "vendor": "Siemens",
          "versions": [
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              "lessThan": "V21",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC HMI MTP700\u00a0Unified Comfort Panel",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V21",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC HMI MTP700 Unified Comfort Panel hygienic neutral design",
          "vendor": "Siemens",
          "versions": [
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}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.