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Fencer Vulns
high 7.5

CVE-2022-40227 json

A vulnerability has been identified in SIMATIC HMI Comfort Panels (incl.

published 2022-10-11 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-43525

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

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.

Patch / fix

  • siemens simatic_hmi_comfort_panels_firmware 17.0
  • siemens simatic_hmi_ktp400_basic_firmware 17.0
  • siemens simatic_hmi_ktp700_basic_firmware 17.0
  • siemens simatic_hmi_ktp900_basic_firmware 17.0
  • siemens simatic_hmi_ktp1200_basic_firmware 17.0
  • siemens simatic_hmi_ktp_mobile_panels_firmware 17.0
  • siemens siplus_hmi_ktp400_basic_firmware 17.0
  • siemens siplus_hmi_ktp700_basic_firmware 17.0
  • siemens siplus_hmi_ktp900_basic_firmware 17.0
  • siemens siplus_hmi_ktp1200_basic_firmware 17.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-286-14 updated cvss 7.5

Siemens SIMATIC HMI Panels

  • Siemens SIMATIC HMI Comfort Panels (incl. SIPLUS variants) <V17_Update_4 Siemens SIMATIC HMI KTP Mobile Panels <V17_Update_4 Siemens SIMATIC HMI KTP400 Basic (6AV2123-2DB03-0AX0) <V17_Update_5 Siemens SIMATIC HMI KTP700 Basic (6AV2123-2GB03-0AX0) <V17_Update_5 Siemens SIMATIC HMI KTP900 Basic (6AV2123-2JB03-0AX0) <V17_Update_5 Siemens SIMATIC HMI KTP1200 Basic (6AV2123-2MB03-0AX0) <V17_Update_5
    +4 more products
    Siemens SIPLUS HMI KTP400 BASIC (6AG1123-2DB03-2AX0) <V17_Update_5 Siemens SIPLUS HMI KTP700 BASIC (6AG1123-2GB03-2AX0) <V17_Update_5 Siemens SIPLUS HMI KTP900 BASIC (6AG1123-2JB03-2AX0) <V17_Update_5 Siemens SIPLUS HMI KTP1200 BASIC (6AG1123-2MB03-2AX0) <V17_Update_5
    affected: fixed in V17, workaround support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
17 mo ago

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Siemens SIMATIC HMI Comfort Panels (incl. SIPLUS variants)
  • Siemens SIMATIC HMI KTP Mobile Panels
  • Siemens SIMATIC HMI KTP1200 Basic
  • Siemens SIMATIC HMI KTP400 Basic
  • Siemens SIMATIC HMI KTP700 Basic
  • Siemens SIMATIC HMI KTP900 Basic
  • Siemens SIPLUS HMI KTP1200 BASIC
  • Siemens SIPLUS HMI KTP400 BASIC
  • Siemens SIPLUS HMI KTP700 BASIC
  • Siemens SIPLUS HMI KTP900 BASIC

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.