CVE-2025-40771

Oct. 14, 2025, 7:36 p.m.

9.3
Critical

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.

Product(s) Impacted

Vendor Product Versions
Siemens
  • Simatic Cp 1542sp-1
  • Simatic Cp 1542sp-1 Irc
  • Simatic Cp 1543sp-1
  • Siplus Et 200sp Cp 1542sp-1 Irc Tx Rail
  • Siplus Et 200sp Cp 1543sp-1 Isec
  • Siplus Et 200sp Cp 1543sp-1 Isec Tx Rail
  • <2.4.24>*
  • <2.4.24>*
  • <2.4.24>*
  • <2.4.24>*
  • <2.4.24>*
  • <2.4.24>*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-306
Missing Authentication for Critical Function
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a siemens simatic_cp_1542sp-1 <2.4.24>* / / / / / /
a siemens simatic_cp_1542sp-1_irc <2.4.24>* / / / / / /
a siemens simatic_cp_1543sp-1 <2.4.24>* / / / / / /
a siemens siplus_et_200sp_cp_1542sp-1_irc_tx_rail <2.4.24>* / / / / / /
a siemens siplus_et_200sp_cp_1543sp-1_isec <2.4.24>* / / / / / /
a siemens siplus_et_200sp_cp_1543sp-1_isec_tx_rail <2.4.24>* / / / / / /

References

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

Tags

CWE-306
productcert@siemens.com
2025-10-14
CVE-2025-40771

CVSS Score

9.3 / 10

CVSS Data - 4.0

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Attack Requirements: NONE
  • Privileges Required: NONE
  • User Interaction: NONE
  • Scope:
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH
  • Exploit Maturity: NOT_DEFINED

    • 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/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

    View Vector String

Timeline

Published: Oct. 14, 2025, 10:15 a.m.
Last Modified: Oct. 14, 2025, 7:36 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

productcert@siemens.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.