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CVE-2026-27662

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CVE-2026-27662

Published: May 12, 2026

Modified: May 13, 2026

PUBLISHED

CVSS v3.1

7.7

HIGH

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.

VendorProductVersions

Siemens

SIMATIC HMI MTP1000 Unified Comfort Panel

affected
0 - < V21

Siemens

SIMATIC HMI MTP1000 Unified Comfort Panel hygienic

affected
0 - < V21

Siemens

SIMATIC HMI MTP1000 Unified Comfort Panel hygienic neutral design

affected
0 - < V21

Siemens

SIMATIC HMI MTP1000, Unified Comfort Panel neutral

affected
0 - < V21

Siemens

SIMATIC HMI MTP1200 Comfort Pro for stand (expandable, flange at the bottom)

affected
0 - < V21

Siemens

SIMATIC HMI MTP1200 Comfort Pro for support arm (expandable, round tube) and extension unit

affected
0 - < V21

Siemens

SIMATIC HMI MTP1200 Comfort Pro for support arm (not extendable, flange on top)

affected
0 - < V21

Siemens

SIMATIC HMI MTP1200 Comfort Pro neutral design for stand (expandable, flange at the bottom)

affected
0 - < V21

Siemens

SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio

affected
0 - < V21

Siemens

SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (not extendable, flange on top)

affected
0 - < V21

Siemens

SIMATIC HMI MTP1200 Unified Comfort Panel

affected
0 - < V21

Siemens

SIMATIC HMI MTP1200 Unified Comfort Panel hygienic

affected
0 - < V21

Siemens

SIMATIC HMI MTP1200 Unified Comfort Panel hygienic neutral design

affected
0 - < V21

Siemens

SIMATIC HMI MTP1200 Unified Comfort Panel neutral design

affected
0 - < V21

Siemens

SIMATIC HMI MTP1500 Comfort Pro for stand (expandable, flange at the bottom)

affected
0 - < V21

Siemens

SIMATIC HMI MTP1500 Comfort Pro for support arm (expandable, round tube) and extension unit

affected
0 - < V21

Siemens

SIMATIC HMI MTP1500 Comfort Pro for support arm (not extendable, flange on top)

affected
0 - < V21

Siemens

SIMATIC HMI MTP1500 Comfort Pro neutral design for stand (expandable, flange at the bottom)

affected
0 - < V21

Siemens

SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm (expandable, round tube) and extensio

affected
0 - < V21

Siemens

SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm (not extendable, flange on top)

affected
0 - < V21

Siemens

SIMATIC HMI MTP1500 Unified Comfort Panel

affected
0 - < V21

Siemens

SIMATIC HMI MTP1500 Unified Comfort Panel hygienic

affected
0 - < V21

Siemens

SIMATIC HMI MTP1500 Unified Comfort Panel hygienic neutral design

affected
0 - < V21

Siemens

SIMATIC HMI MTP1500 Unified Comfort Panel neutral design

affected
0 - < V21

Siemens

SIMATIC HMI MTP1900 Comfort Pro for stand (expandable, flange at the bottom)

affected
0 - < V21

Siemens

SIMATIC HMI MTP1900 Comfort Pro for support arm (expandable, round tube) and extension unit

affected
0 - < V21

Siemens

SIMATIC HMI MTP1900 Comfort Pro for support arm (not extendable, flange on top)

affected
0 - < V21

Siemens

SIMATIC HMI MTP1900 Comfort Pro neutral design for stand (expandable, flange at the bottom)

affected
0 - < V21

Siemens

SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm (expandable, round tube) and extensio

affected
0 - < V21

Siemens

SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm (not extendable, flange on top)

affected
0 - < V21

Siemens

SIMATIC HMI MTP1900 Unified Comfort Panel

affected
0 - < V21

Siemens

SIMATIC HMI MTP1900 Unified Comfort Panel hygienic

affected
0 - < V21

Siemens

SIMATIC HMI MTP1900 Unified Comfort Panel hygienic neutral design

affected
0 - < V21

Siemens

SIMATIC HMI MTP1900 Unified Comfort Panel neutral design

affected
0 - < V21

Siemens

SIMATIC HMI MTP2200 Comfort Pro for stand (expandable, flange at the bottom)

affected
0 - < V21

Siemens

SIMATIC HMI MTP2200 Comfort Pro for support arm (expandable, round tube) and extension unit

affected
0 - < V21

Siemens

SIMATIC HMI MTP2200 Comfort Pro for support arm (not extendable, flange on top)

affected
0 - < V21

Siemens

SIMATIC HMI MTP2200 Comfort Pro neutral design for stand (expandable, flange at the bottom)

affected
0 - < V21

Siemens

SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio

affected
0 - < V21

Siemens

SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm (not extendable, flange on top)

affected
0 - < V21

Siemens

SIMATIC HMI MTP2200 Unified Comfort Hygienic

affected
0 - < V21

Siemens

SIMATIC HMI MTP2200 Unified Comfort Hygienic neutral design

affected
0 - < V21

Siemens

SIMATIC HMI MTP2200 Unified Comfort Panel

affected
0 - < V21

Siemens

SIMATIC HMI MTP2200 Unified Comfort Panel neutral design

affected
0 - < V21

Siemens

SIMATIC HMI MTP700 Unified Comfort Panel

affected
0 - < V21

Siemens

SIMATIC HMI MTP700 Unified Comfort Panel hygienic neutral design

affected
0 - < V21

Siemens

SIMATIC HMI MTP700 Unified Comfort Panel hygienic neutral design

affected
0 - < V21

Siemens

SIMATIC HMI MTP700, Unified Comfort Panel neutral design

affected
0 - < V21

Siemens

SIPLUS HMI MTP1000 Unified Comfort

affected
0 - < V21

Siemens

SIPLUS HMI MTP1200 Unified Comfort

affected
0 - < V21

Siemens

SIPLUS HMI MTP700 Unified Comfort

affected
0 - < V21

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

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