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Vulnerability record · CVE-2022-40227 · published 11 October 2022

CVE-2022-40227: Siemens simatic hmi comfort panels firmware improper input validation vulnerability

Siemens · Simatic Hmi Comfort Panels Firmware

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.

7.5 CVSS 3.1 High EPSS 0.84% · top 43.7% CWE-20 · Improper input validation
7.5CVSS 3.1 base score
0.84%EPSS exploitation probability, 30 days
NoNot in CISA KEV
10Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

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

Affected products

10 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-15798Siemens simatic hmi comfort panels firmware missing authentication for critical function vulnerabilityA vulnerability has been identified in SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions < V16 Update 3a), SIMATIC HMI KTP Mobile Pane…EPSS 5.2%9.8CVE-2020-15786Siemens simatic hmi basic panels 2nd generation firmware improper restriction of authentication attempts vulnerabilityA vulnerability has been identified in SIMATIC HMI Basic Panels 2nd Generation (incl. SIPLUS variants) (All versions < V16), SIMATIC HMI Comfort Pane…EPSS 1.5%9.1CVE-2019-6572Siemens simatic hmi comfort panels firmware information exposure vulnerabilityA vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V15.1 Update 1), SIMATIC HMI Comfort Outdoor Panels 7" & 1…EPSS 2.7%8.8CVE-2018-13814Siemens simatic hmi comfort panels firmware improper input validation vulnerabilityA vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V14), SIMATIC HMI Comfort Outdoor Panels 7" & 15" (All ver…EPSS 1.7%8.1CVE-2018-13813Siemens simatic hmi comfort panels firmware open redirect vulnerabilityA vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V15 Update 4), SIMATIC HMI Comfort Outdoor Panels 7" & 15"…EPSS 1.7%7.5CVE-2019-10936Siemens dk standard ethernet controller firmware uncontrolled resource consumption vulnerabilityAffected devices improperly handle large amounts of specially crafted UDP packets. This could allow an unauthenticated remote attacker to trigger a d…EPSS 2.1%7.5CVE-2019-6568Siemens cp1604 firmware out-of-bounds read vulnerabilityThe webserver of the affected devices contains a vulnerability that may lead to a denial of service condition. An attacker may cause a denial of serv…EPSS 1.4%7.5CVE-2018-13812Siemens simatic hmi comfort panels firmware path traversal vulnerabilityA vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V15 Update 4), SIMATIC HMI Comfort Outdoor Panels 7" & 15"…EPSS 3.6%

Source: NIST National Vulnerability Database (record CVE-2022-40227), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.