HomeSiemensCVE-2025-40940

CVE-2025-40940

MEDIUM
6.9CVSS
Published: 2025-12-09
Updated: 2025-12-10
AI Analysis

Description

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected application exhibits inconsistent SNMP behavior, such as unexpected service availability and unreliable configuration handling across protocol versions. This could allow an attacker to access sensitive data, potentially leading to a breach of confidentiality.

CVSS Metrics

Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/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
Attack Vector
network
Complexity
low
Privileges
high
User Action
none
Confidentiality
undefined
Integrity
undefined
Availability
undefined
Weaknesses
CWE-200

Metadata

Primary Vendor
SIEMENS
Published
12/9/2025
Last Modified
12/10/2025
Source
NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

siemens : simatic_cn_4100_firmware

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CVE-CVE-2025-40940 | MEDIUM Severity | CVEDatabase.com | CVEDatabase.com