Siemens SIMATIC HMI Comfort Panels TCP denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Siemens SIMATIC HMI Comfort Panels, SIMATIC HMI KTP Mobile Panels, SIMATIC HMI KTP1200 Basic, SIMATIC HMI KTP400 Basic, SIMATIC HMI KTP700 Basic, SIMATIC HMI KTP900 Basic, SIPLUS HMI KTP1200 BASIC, SIPLUS HMI KTP400 BASIC, SIPLUS HMI KTP700 BASIC and SIPLUS HMI KTP900 BASIC. It has been classified as problematic. The affected element is an unknown function of the component TCP Handler. The manipulation leads to denial of service. This vulnerability is referenced as CVE-2022-40227. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Siemens SIMATIC HMI Comfort Panels, SIMATIC HMI KTP Mobile Panels, SIMATIC HMI KTP1200 Basic, SIMATIC HMI KTP400 Basic, SIMATIC HMI KTP700 Basic, SIMATIC HMI KTP900 Basic, SIPLUS HMI KTP1200 BASIC, SIPLUS HMI KTP400 BASIC, SIPLUS HMI KTP700 BASIC and SIPLUS HMI KTP900 BASIC (SCADA Software) and classified as critical. This issue affects an unknown code block of the component TCP Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

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.

The weakness was published 10/11/2022 as ssa-384224. The advisory is shared at cert-portal.siemens.com. The identification of this vulnerability is CVE-2022-40227 since 09/08/2022. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/03/2026). MITRE ATT&CK project uses the attack technique T1499 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

ADP CISA Base Score: 7.5
ADP CISA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/08/2022 🔍
10/11/2022 +33 days 🔍
10/11/2022 +0 days 🔍
06/03/2026 +1331 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-384224
Status: Confirmed

CVE: CVE-2022-40227 (🔍)
GCVE (CVE): GCVE-0-2022-40227
GCVE (VulDB): GCVE-100-210425

Entryinfo

Created: 10/11/2022 16:12
Updated: 06/03/2026 04:09
Changes: 10/11/2022 16:12 (39), 11/05/2022 08:38 (9), 06/03/2026 04:09 (24)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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