RCE in Siemens Simatic Hmi Mtp1000 Unified Comfort Panel

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…

EPSS: 0.000 (10.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-27662?
CVE-2026-27662 is a high-severity vulnerability in Siemens Simatic Hmi Mtp1000 Unified Comfort Panel, classified under Initialization of a Resource with an Insecure Default. CVSS score: 7.7/10. Published 2026-05-12.
How severe is CVE-2026-27662?
High severity. CVSS v3 base score is 7.7 out of 10.