CVE-2025-40938

State
Published
Severity
9.2 Critical
Published
Dec 9, 2025
Updated
Dec 9, 2025
Reserved
Apr 16, 2025

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Description

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected device stores sensitive information in the firmware. This could allow an attacker to access and misuse this information, potentially impacting the device’s confidentiality, integrity, and availability.

Scores

CVSSScoreVectorSource
4.09.2 CriticalCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsiemens
3.18.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsiemens

Weaknesses

  • CWE-798 Use of Hard-coded Credentials

Affected Products

ProductVersions
SIMATIC CN 4100Siemens
  • before V4.0.1Affected

References

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