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CVE-2025-40771

Published: Oct 14, 2025Updated: Oct 14, 2025 Sources: CVE List NVD BDU csafCWE-306
9.8CRITICAL
NVD MITRE
EPSS Score
0.5%
Top 60.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

A vulnerability has been identified in SIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0) (All versions < V2.4.24), SIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0) (All versions < V2.4.24), SIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0) (All versions < V2.4.24), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0) (All versions < V2.4.24), SIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0) (All versions < V2.4.24), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0) (All versions < V2.4.24). Affected devices do not properly authenticate configuration connections. This could allow an unauthenticated remote attacker to access the configuration data.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-306

Affected Products

Siemens AG
commercial·DEaka Siemens
SIMATIC CP 1542SP-1
ICS / OT / IoT
SIMATIC CP 1542SP-1 IRC
ICS / OT / IoT
SIMATIC CP 1543SP-1
ICS / OT / IoT
SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL
ICS / OT / IoT
SIPLUS ET 200SP CP 1543SP-1 ISEC
ICS / OT / IoT
SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL
ICS / OT / IoT
and 6 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2025-40771?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/html/ssa-486936.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/csaf/ssa-486936.json
cert-portal.siemens.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-289-07.json
raw.githubusercontent.com
and 7 more references View all →

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