CVE-2025-40940CWE-200information-disclosure

CVE-2025-40940

Medium · published December 9, 2025

CVSS v3.1
4.9
EPSS
0%
Percentile
29.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00366 · 29.3th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2025-12-09T21:17Z
Affected products (1)
ProductVersionsFixed in
siemens/simatic_cn_4100_firmware< 4.0.14.0.1
References (1)
https://cert-portal.siemens.com/productcert/html/ssa-416652.html · [email protected]
EPSS history
Timeline
  • 09 DEC 10:44Z
    A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1)
    cvelistv5