High 7.7Published May 12, 2026

CVE-2026-27662Affected devices do not properly restrict access to the web browser via the Control Panel when no corresponding security mechanisms are in place.

Updated under an hour ago (Oct 28, 2026, 9:23 AM ET)

Does this affect you?

It affects Siemens SIMATIC HMI MTP1000 Unified Comfort Panel and 49 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Siemens SIMATIC HMI MTP1000 Unified Comfort Panel

Exploited in the last 30 days

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: 7.7 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-1188
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: siemens
NVD analysis: Awaiting Analysis
Record last updated: May 12, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Siemens SIMATIC HMI MTP1000 Unified Comfort Panel siemens:simatic_hmi_mtp1000_unified_comfort_panel (from the name)	before V21	CNA record
Siemens SIMATIC HMI MTP1000 Unified Comfort Panel hygienic siemens:simatic_hmi_mtp1000_unified_comfort_panel_hygienic (from the name)	before V21	CNA record
Siemens SIMATIC HMI MTP1000 Unified Comfort Panel hygienic neutral design siemens:simatic_hmi_mtp1000_unified_comfort_panel_hygienic_neutral_design (from the name)	before V21	CNA record
Siemens SIMATIC HMI MTP1000, Unified Comfort Panel neutral siemens:simatic_hmi_mtp1000_unified_comfort_panel_neutral (from the name)	before V21	CNA record
Siemens SIMATIC HMI MTP1200 Comfort Pro for stand (expandable, flange at the bottom) siemens:simatic_hmi_mtp1200_comfort_pro_for_stand_expandable_flange_at_the_bottom (from the name)	before V21	CNA record
Siemens SIMATIC HMI MTP1200 Comfort Pro for support arm (expandable, round tube) and extension unit siemens:simatic_hmi_mtp1200_comfort_pro_for_support_arm_expandable_round_tube_and_extension_unit (from the name)	before V21	CNA record
Siemens SIMATIC HMI MTP1200 Comfort Pro for support arm (not extendable, flange on top) siemens:simatic_hmi_mtp1200_comfort_pro_for_support_arm_not_extendable_flange_on_top (from the name)	before V21	CNA record
Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for stand (expandable, flange at the bottom) siemens:simatic_hmi_mtp1200_comfort_pro_neutral_design_for_stand_expandable_flange_at_the_bottom (from the name)	before V21	CNA record
Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio siemens:simatic_hmi_mtp1200_comfort_pro_neutral_design_for_support_arm_expandable_round_tube_and_extensio (from the name)	before V21	CNA record
Siemens SIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (not extendable, flange on top) siemens:simatic_hmi_mtp1200_comfort_pro_neutral_design_for_support_arm_not_extendable_flange_on_top (from the name)	before V21	CNA record
1–10 of 50

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.