Privilege Escalation Vulnerability in SIMATIC WinCC by Siemens
CVE-2026-59241

8.7HIGH

Key Information:

Vendor

Siemens
Status
Simatic Wincc V7.5
Simatic Wincc V8.0
Simatic Wincc V8.1
Vendor
CVE Published:
13 October 2026

What is CVE-2026-59241?

A security vulnerability has been discovered in SIMATIC WinCC, where inadequate permission restrictions for database roles may permit an authenticated remote attacker to escalate privileges. This could enable unauthorized execution of arbitrary commands on the host system hosting SIMATIC WinCC, jeopardizing the integrity and confidentiality of critical operations.

Affected Version(s)

SIMATIC WinCC V7.5 0

SIMATIC WinCC V8.0 0

SIMATIC WinCC V8.1 0

References

https://cert-portal.siemens.com/productcert/html/ssa-5501...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
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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