CVE-2025-40771

State: Published
Severity: 9.3 Critical
Published: Oct 14, 2025
Updated: Oct 14, 2025
Reserved: Apr 16, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	9.3 Critical	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	siemens
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	siemens

Weaknesses

CWE-306 Missing Authentication for Critical Function

Affected Products

Product	Versions
SIMATIC CP 1542SP-1Siemens	before V2.4.24Affected
SIMATIC CP 1542SP-1 IRCSiemens	before V2.4.24Affected
SIMATIC CP 1543SP-1Siemens	before V2.4.24Affected
SIPLUS ET 200SP CP 1542SP-1 IRC TX RAILSiemens	before V2.4.24Affected
SIPLUS ET 200SP CP 1543SP-1 ISECSiemens	before V2.4.24Affected
SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAILSiemens	before V2.4.24Affected

References

https://cert-portal.siemens.com/productcert/html/ssa-486936.html

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.