Siemens SIMATIC HMI MTP1000 Unified Comfort Panel prior 21 insecure default initialization of resource

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Siemens SIMATIC HMI MTP1000 Unified Comfort Panel, SIMATIC HMI MTP1000 Unified Comfort Panel hygienic, SIMATIC HMI MTP1000 Unified Comfort Panel hygienic neutral design, SIMATIC HMI MTP1000, Unified Comfort Panel neutral, SIMATIC HMI MTP1200 Comfort Pro for stand, SIMATIC HMI MTP1200 Comfort Pro for support arm and extension unit, SIMATIC HMI MTP1200 Comfort Pro for support arm, SIMATIC HMI MTP1200 Comfort Pro neutral design for stand, SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm and extensio, SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm, SIMATIC HMI MTP1200 Unified Comfort Panel, SIMATIC HMI MTP1200 Unified Comfort Panel hygienic, SIMATIC HMI MTP1200 Unified Comfort Panel hygienic neutral design, SIMATIC HMI MTP1200 Unified Comfort Panel neutral design, SIMATIC HMI MTP1500 Comfort Pro for stand, SIMATIC HMI MTP1500 Comfort Pro for support arm and extension unit, SIMATIC HMI MTP1500 Comfort Pro for support arm, SIMATIC HMI MTP1500 Comfort Pro neutral design for stand, SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm and extensio, SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm, SIMATIC HMI MTP1500 Unified Comfort Panel, SIMATIC HMI MTP1500 Unified Comfort Panel hygienic, SIMATIC HMI MTP1500 Unified Comfort Panel hygienic neutral design, SIMATIC HMI MTP1500 Unified Comfort Panel neutral design, SIMATIC HMI MTP1900 Comfort Pro for stand, SIMATIC HMI MTP1900 Comfort Pro for support arm and extension unit, SIMATIC HMI MTP1900 Comfort Pro for support arm, SIMATIC HMI MTP1900 Comfort Pro neutral design for stand, SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm and extensio, SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm, SIMATIC HMI MTP1900 Unified Comfort Panel, SIMATIC HMI MTP1900 Unified Comfort Panel hygienic, SIMATIC HMI MTP1900 Unified Comfort Panel hygienic neutral design, SIMATIC HMI MTP1900 Unified Comfort Panel neutral design, SIMATIC HMI MTP2200 Comfort Pro for stand, SIMATIC HMI MTP2200 Comfort Pro for support arm and extension unit, SIMATIC HMI MTP2200 Comfort Pro for support arm, SIMATIC HMI MTP2200 Comfort Pro neutral design for stand, SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm and extensio, SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm, SIMATIC HMI MTP2200 Unified Comfort Hygienic, SIMATIC HMI MTP2200 Unified Comfort Hygienic neutral design, SIMATIC HMI MTP2200 Unified Comfort Panel, SIMATIC HMI MTP2200 Unified Comfort Panel neutral design and SIMATIC HMI MTP700 Unified. It has been rated as problematic. The impacted element is an unknown function. Performing a manipulation results in insecure default initialization of resource. This vulnerability is known as CVE-2026-27662. Attacking locally is a requirement. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Siemens SIMATIC HMI MTP1000 Unified Comfort Panel, SIMATIC HMI MTP1000 Unified Comfort Panel hygienic, SIMATIC HMI MTP1000 Unified Comfort Panel hygienic neutral design, SIMATIC HMI MTP1000, Unified Comfort Panel neutral, SIMATIC HMI MTP1200 Comfort Pro for stand, SIMATIC HMI MTP1200 Comfort Pro for support arm and extension unit, SIMATIC HMI MTP1200 Comfort Pro for support arm, SIMATIC HMI MTP1200 Comfort Pro neutral design for stand, SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm and extensio, SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm, SIMATIC HMI MTP1200 Unified Comfort Panel, SIMATIC HMI MTP1200 Unified Comfort Panel hygienic, SIMATIC HMI MTP1200 Unified Comfort Panel hygienic neutral design, SIMATIC HMI MTP1200 Unified Comfort Panel neutral design, SIMATIC HMI MTP1500 Comfort Pro for stand, SIMATIC HMI MTP1500 Comfort Pro for support arm and extension unit, SIMATIC HMI MTP1500 Comfort Pro for support arm, SIMATIC HMI MTP1500 Comfort Pro neutral design for stand, SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm and extensio, SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm, SIMATIC HMI MTP1500 Unified Comfort Panel, SIMATIC HMI MTP1500 Unified Comfort Panel hygienic, SIMATIC HMI MTP1500 Unified Comfort Panel hygienic neutral design, SIMATIC HMI MTP1500 Unified Comfort Panel neutral design, SIMATIC HMI MTP1900 Comfort Pro for stand, SIMATIC HMI MTP1900 Comfort Pro for support arm and extension unit, SIMATIC HMI MTP1900 Comfort Pro for support arm, SIMATIC HMI MTP1900 Comfort Pro neutral design for stand, SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm and extensio, SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm, SIMATIC HMI MTP1900 Unified Comfort Panel, SIMATIC HMI MTP1900 Unified Comfort Panel hygienic, SIMATIC HMI MTP1900 Unified Comfort Panel hygienic neutral design, SIMATIC HMI MTP1900 Unified Comfort Panel neutral design, SIMATIC HMI MTP2200 Comfort Pro for stand, SIMATIC HMI MTP2200 Comfort Pro for support arm and extension unit, SIMATIC HMI MTP2200 Comfort Pro for support arm, SIMATIC HMI MTP2200 Comfort Pro neutral design for stand, SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm and extensio, SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm, SIMATIC HMI MTP2200 Unified Comfort Hygienic, SIMATIC HMI MTP2200 Unified Comfort Hygienic neutral design, SIMATIC HMI MTP2200 Unified Comfort Panel, SIMATIC HMI MTP2200 Unified Comfort Panel neutral design and SIMATIC HMI MTP700 Unified. It has been classified as problematic. This affects an unknown function. The manipulation with an unknown input leads to a insecure default initialization of resource vulnerability. CWE is classifying the issue as CWE-1188. The product initializes or sets a resource with a default that is intended to be changed by the administrator, but the default is not secure. This is going to have an impact on integrity, and availability. The summary by CVE is:

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.

The advisory is shared at cert-portal.siemens.com. This vulnerability is uniquely identified as CVE-2026-27662 since 02/23/2026. The exploitability is told to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/13/2026).

Upgrading to version 21 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-29429). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 5.9

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.7
CNA Vector (siemens): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Insecure default initialization of resource
CWE: CWE-1188
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: SIMATIC HMI MTP1000 Unified Comfort Panel/SIMATIC HMI MTP1000 Unified Comfort Panel hygienic/SIMATIC HMI MTP1000 Unified Comfort Panel hygienic neutral design/SIMATIC HMI MTP1000/Unified Comfort Panel neutral/SIMATIC HMI MTP1200 Comfort Pro for stand/SIMATIC HMI MTP1200 Comfort Pro for support arm and extension unit/SIMATIC HMI MTP1200 Comfort Pro for support arm/SIMATIC HMI MTP1200 Comfort Pro neutral design for stand/SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm and extensio/SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm/SIMATIC HMI MTP1200 Unified Comfort Panel/SIMATIC HMI MTP1200 Unified Comfort Panel hygienic/SIMATIC HMI MTP1200 Unified Comfort Panel hygienic neutral design/SIMATIC HMI MTP1200 Unified Comfort Panel neutral design/SIMATIC HMI MTP1500 Comfort Pro for stand/SIMATIC HMI MTP1500 Comfort Pro for support arm and extension unit/SIMATIC HMI MTP1500 Comfort Pro for support arm/SIMATIC HMI MTP1500 Comfort Pro neutral design for stand/SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm and extensio/SIMATIC HMI MTP1500 Comfort Pro neutral design for support arm/SIMATIC HMI MTP1500 Unified Comfort Panel/SIMATIC HMI MTP1500 Unified Comfort Panel hygienic/SIMATIC HMI MTP1500 Unified Comfort Panel hygienic neutral design/SIMATIC HMI MTP1500 Unified Comfort Panel neutral design/SIMATIC HMI MTP1900 Comfort Pro for stand/SIMATIC HMI MTP1900 Comfort Pro for support arm and extension unit/SIMATIC HMI MTP1900 Comfort Pro for support arm/SIMATIC HMI MTP1900 Comfort Pro neutral design for stand/SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm and extensio/SIMATIC HMI MTP1900 Comfort Pro neutral design for support arm/SIMATIC HMI MTP1900 Unified Comfort Panel/SIMATIC HMI MTP1900 Unified Comfort Panel hygienic/SIMATIC HMI MTP1900 Unified Comfort Panel hygienic neutral design/SIMATIC HMI MTP1900 Unified Comfort Panel neutral design/SIMATIC HMI MTP2200 Comfort Pro for stand/SIMATIC HMI MTP2200 Comfort Pro for support arm and extension unit/SIMATIC HMI MTP2200 Comfort Pro for support arm/SIMATIC HMI MTP2200 Comfort Pro neutral design for stand/SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm and extensio/SIMATIC HMI MTP2200 Comfort Pro neutral design for support arm/SIMATIC HMI MTP2200 Unified Comfort Hygienic/SIMATIC HMI MTP2200 Unified Comfort Hygienic neutral design/SIMATIC HMI MTP2200 Unified Comfort Panel/SIMATIC HMI MTP2200 Unified Comfort Panel neutral design/SIMATIC HMI MTP700 Unified 21

Timelineinfo

02/23/2026 CVE reserved
05/12/2026 +77 days Advisory disclosed
05/12/2026 +0 days VulDB entry created
05/13/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-387223
Status: Confirmed

CVE: CVE-2026-27662 (🔒)
GCVE (CVE): GCVE-0-2026-27662
GCVE (VulDB): GCVE-100-362985
EUVD: 🔒

Entryinfo

Created: 05/12/2026 11:43
Updated: 05/13/2026 07:42
Changes: 05/12/2026 11:43 (75), 05/13/2026 07:42 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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