CVE-2025-40771CRITICAL 9.8EPSS p37.9%

CVE-2025-40771CVE-2025-40771

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.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.48% probability of exploitation · percentile 37.9% · 2026-06-19T12:03:05Z
Published2025-10-14
Last modified2026-04-15

Underlying weaknesses· 1

CWE-306

References

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

1

TypeTargetConfidenceTier
WeaknessMissing Authentication for Critical Functioncwe-3060%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2025-40944
CVE
CVE-2019-6575
CVE
Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability
CVE
CVE-2020-15782
CVE
CVE-2025-40938
CVE
CVE-2025-40937
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.