8.7

CVE-2025-40944

A vulnerability has been identified in SIMATIC ET 200AL IM 157-1 PN (6ES7157-1AB00-0AB0) (All versions), SIMATIC ET 200MP IM 155-5 PN HF (6ES7155-5AA00-0AC0) (All versions >= V4.2.0), SIMATIC ET 200SP IM 155-6 MF HF (6ES7155-6MU00-0CN0) (All versions), SIMATIC ET 200SP IM 155-6 PN HA (incl. SIPLUS variants) (All versions < V1.3), SIMATIC ET 200SP IM 155-6 PN R1 (6ES7155-6AU00-0HM0) (All versions < V6.0.1), SIMATIC ET 200SP IM 155-6 PN/2 HF (6ES7155-6AU01-0CN0) (All versions >= V4.2.0), SIMATIC ET 200SP IM 155-6 PN/3 HF (6ES7155-6AU30-0CN0) (All versions < V4.2.2), SIMATIC PN/MF Coupler (6ES7158-3MU10-0XA0) (All versions), SIMATIC PN/PN Coupler (6ES7158-3AD10-0XA0) (All versions < V6.0.0), SIPLUS ET 200MP IM 155-5 PN HF (6AG1155-5AA00-2AC0) (All versions >= V4.2.0), SIPLUS ET 200MP IM 155-5 PN HF (6AG1155-5AA00-7AC0) (All versions >= V4.2.0), SIPLUS ET 200MP IM 155-5 PN HF T1 RAIL (6AG2155-5AA00-1AC0) (All versions >= V4.2.0), SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU01-2CN0) (All versions >= V4.2.0), SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU01-7CN0) (All versions >= V4.2.0), SIPLUS ET 200SP IM 155-6 PN HF T1 RAIL (6AG2155-6AU01-1CN0) (All versions >= V4.2.0), SIPLUS ET 200SP IM 155-6 PN HF TX RAIL (6AG2155-6AU01-4CN0) (All versions >= V4.2.0), SIPLUS NET PN/PN Coupler (6AG2158-3AD10-4XA0) (All versions < V6.0.0). Affected devices do not properly handle S7 protocol session disconnect requests. When receiving a valid S7 protocol Disconnect Request (COTP DR TPDU) on TCP port 102, the devices enter an improper session state.

This could allow an attacker to cause the device to become unresponsive, leading to a denial-of-service condition that requires a power cycle to restore normal operation.
Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
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Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerSiemens
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Produkt SIMATIC ET 200AL IM 157-1 PN
Default Statusunknown
Version < *
Version 0
Status affected
HerstellerSiemens
≫
Produkt SIMATIC ET 200MP IM 155-5 PN HF
Default Statusunknown
Version < *
Version V4.2.0
Status affected
HerstellerSiemens
≫
Produkt SIMATIC ET 200SP IM 155-6 MF HF
Default Statusunknown
Version < *
Version 0
Status affected
HerstellerSiemens
≫
Produkt SIMATIC ET 200SP IM 155-6 PN HA (incl. SIPLUS variants)
Default Statusunknown
Version < V1.3
Version 0
Status affected
HerstellerSiemens
≫
Produkt SIMATIC ET 200SP IM 155-6 PN R1
Default Statusunknown
Version < V6.0.1
Version 0
Status affected
HerstellerSiemens
≫
Produkt SIMATIC ET 200SP IM 155-6 PN/2 HF
Default Statusunknown
Version < *
Version V4.2.0
Status affected
HerstellerSiemens
≫
Produkt SIMATIC ET 200SP IM 155-6 PN/3 HF
Default Statusunknown
Version < V4.2.2
Version 0
Status affected
HerstellerSiemens
≫
Produkt SIMATIC PN/MF Coupler
Default Statusunknown
Version < *
Version 0
Status affected
HerstellerSiemens
≫
Produkt SIMATIC PN/PN Coupler
Default Statusunknown
Version < V6.0.0
Version 0
Status affected
HerstellerSiemens
≫
Produkt SIPLUS ET 200MP IM 155-5 PN HF
Default Statusunknown
Version < *
Version V4.2.0
Status affected
HerstellerSiemens
≫
Produkt SIPLUS ET 200MP IM 155-5 PN HF
Default Statusunknown
Version < *
Version V4.2.0
Status affected
HerstellerSiemens
≫
Produkt SIPLUS ET 200MP IM 155-5 PN HF T1 RAIL
Default Statusunknown
Version < *
Version V4.2.0
Status affected
HerstellerSiemens
≫
Produkt SIPLUS ET 200SP IM 155-6 PN HF
Default Statusunknown
Version < *
Version V4.2.0
Status affected
HerstellerSiemens
≫
Produkt SIPLUS ET 200SP IM 155-6 PN HF
Default Statusunknown
Version < *
Version V4.2.0
Status affected
HerstellerSiemens
≫
Produkt SIPLUS ET 200SP IM 155-6 PN HF T1 RAIL
Default Statusunknown
Version < *
Version V4.2.0
Status affected
HerstellerSiemens
≫
Produkt SIPLUS ET 200SP IM 155-6 PN HF TX RAIL
Default Statusunknown
Version < *
Version V4.2.0
Status affected
HerstellerSiemens
≫
Produkt SIPLUS NET PN/PN Coupler
Default Statusunknown
Version < V6.0.0
Version 0
Status affected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.05% 0.165
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
productcert@siemens.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
productcert@siemens.com 8.7 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.