Session Identifier Exposure in SIPROTEC 5 Products by Siemens
CVE-2025-40742

6MEDIUM

Key Information:

Vendor

Siemens
Status
Siprotec 5 6md84 (cp300)
Siprotec 5 6md85 (cp300)
Siprotec 5 6md86 (cp300)
Siprotec 5 6md89 (cp300)
Vendor
CVE Published:
8 July 2025

What is CVE-2025-40742?

A session identifier exposure vulnerability has been identified in various SIPROTEC 5 products by Siemens. The affected devices improperly manage session identifiers within URL requests for specific functionalities. This oversight allows attackers to potentially access sensitive session information from browser histories and logs, leading to unauthorized retrieval of critical data and services.

Affected Version(s)

SIPROTEC 5 6MD84 (CP300) 0

SIPROTEC 5 6MD85 (CP300) 0

SIPROTEC 5 6MD86 (CP300) 0

References

https://cert-portal.siemens.com/productcert/html/ssa-9046...

CVSS V4

Score:
6
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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