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CVE-2025-40771

CRITICAL
9.8
CVSS 3.1
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.

Metadata

CVE ID
CVE-2025-40771
State
PUBLISHED
Assigner
siemens
Reserved
2025-04-16 08:39 UTC
Published
2025-10-14 09:15 UTC
Last updated
2025-10-14 18:59 UTC
Primary CWE
CWE-306
CWE-306: Missing Authentication for Critical Function
Vendor / Product
Siemens / SIMATIC CP 1542SP-1
Sources
cve.org  ·  NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
partial
Affected products (6)
VendorProductPlatformVersions
Siemens SIMATIC CP 1542SP-1 — 0 < V2.4.24
Siemens SIMATIC CP 1542SP-1 IRC — 0 < V2.4.24
Siemens SIMATIC CP 1543SP-1 — 0 < V2.4.24
Siemens SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL — 0 < V2.4.24
Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC — 0 < V2.4.24
Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL — 0 < V2.4.24
Weakness (CWE)
CWESourceDescription
CWE-306 cna CWE-306: Missing Authentication for Critical Function
CVSS scores (2)
ScoreSeverityVersionSourceVector
9.8 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 CRITICAL 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References (1)
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