Improper Input Validation in Schneider Electric's Web Server Product
CVE-2025-3898

7.1HIGH

Key Information:

Vendor

Schneider Electric
Status
Modicon Controllers M241/m251
Modicon Controllers M262
Vendor
CVE Published:
10 June 2025

What is CVE-2025-3898?

An improper input validation vulnerability exists in Schneider Electric's web server, where an authenticated malicious user could exploit the server by sending an HTTPS request containing invalid data types. This could lead to a Denial of Service, compromising the server's functionality and service availability. Implementing robust input validation measures is critical to mitigate these risks and ensure system integrity.

Affected Version(s)

Modicon Controllers M241/M251 Versions prior to 5.3.12.51

Modicon Controllers M262 Versions prior to 5.3.9.18

References

https://download.schneider-electric.com/files?p_Doc_Ref=S...

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-3898 : Improper Input Validation in Schneider Electric's Web Server Product