CVE-2022-40227

Name: CVE-2022-40227
Creator: NVD / NIST
Published: 2022-10-11T11:15:10.94+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.77%

Last modified Jun 17, 2026

CVE-2022-40227 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability has been identified in SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions < V17 Update 4), SIMATIC HMI KTP Mobile Panels (All versions < V17 Update 4), SIMATIC HMI KTP1200 Basic (All versions < V17 Update 5), SIMATIC HMI KTP400 Basic (All versions < V17 Update 5), SIMATIC HMI KTP700 Basic (All versions < V17 Update 5), SIMATIC HMI KTP900 Basic (All versions < V17 Update 5), SIPLUS HMI KTP1200 BASIC (All versions < V17 Update 5), SIPLUS HMI KTP400 BASIC (All versions < V17 Update 5), SIPLUS HMI KTP700 BASIC (All versions < V17 Update 5), SIPLUS HMI KTP900 BASIC (All versions < V17 Update 5). EPSS estimates a 0.77% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions < V17 Update 4), SIMATIC HMI KTP Mobile Panels (All versions < V17 Update 4), SIMATIC HMI KTP1200 Basic (All versions < V17 Update 5), SIMATIC HMI KTP400 Basic (All versions < V17 Update 5), SIMATIC HMI KTP700 Basic (All versions < V17 Update 5), SIMATIC HMI KTP900 Basic (All versions < V17 Update 5), SIPLUS HMI KTP1200 BASIC (All versions < V17 Update 5), SIPLUS HMI KTP400 BASIC (All versions < V17 Update 5), SIPLUS HMI KTP700 BASIC (All versions < V17 Update 5), SIPLUS HMI KTP900 BASIC (All versions < V17 Update 5). Affected devices do not properly validate input sent to certain services over TCP. This could allow an unauthenticated remote attacker to cause a permanent denial of service condition (requiring a device reboot) by sending specially crafted TCP packets.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.77%

50.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Siemens	Simatic Hmi Comfort Panels Firmware	< 17.0
Siemens	Simatic Hmi Comfort Panels Firmware	17.0
Siemens	Simatic Hmi Ktp400 Basic Firmware	< 17.0
Siemens	Simatic Hmi Ktp400 Basic Firmware	17.0
Siemens	Simatic Hmi Ktp700 Basic Firmware	< 17.0
Siemens	Simatic Hmi Ktp700 Basic Firmware	17.0
Siemens	Simatic Hmi Ktp900 Basic Firmware	< 17.0
Siemens	Simatic Hmi Ktp900 Basic Firmware	17.0
Siemens	Simatic Hmi Ktp1200 Basic Firmware	< 17.0
Siemens	Simatic Hmi Ktp1200 Basic Firmware	17.0
Siemens	Simatic Hmi Ktp Mobile Panels Firmware	< 17.0
Siemens	Simatic Hmi Ktp Mobile Panels Firmware	17.0
Siemens	Siplus Hmi Ktp400 Basic Firmware	< 17.0
Siemens	Siplus Hmi Ktp400 Basic Firmware	17.0
Siemens	Siplus Hmi Ktp700 Basic Firmware	< 17.0
Siemens	Siplus Hmi Ktp700 Basic Firmware	17.0
Siemens	Siplus Hmi Ktp900 Basic Firmware	< 17.0
Siemens	Siplus Hmi Ktp900 Basic Firmware	17.0
Siemens	Siplus Hmi Ktp1200 Basic Firmware	< 17.0
Siemens	Siplus Hmi Ktp1200 Basic Firmware	17.0

References

https://cert-portal.siemens.com/productcert/pdf/ssa-384224.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-384224.pdfVendor Advisory

Timeline

Published: Oct 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-40227?

How severe is CVE-2022-40227?

CVE-2022-40227 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.77% probability of exploitation in the next 30 days.

How do I fix CVE-2022-40227?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-40227?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST