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ICSA-26-134-13  ·  Published 2026-05-14  ·  View on CISA ICS-CERT ↗

Siemens SIPROTEC 5

CVSS 5.3 MEDIUM

Risk Summary

The SIPROTEC 5 devices do not use sufficiently random numbers to generate session identifiers. This could facilitate a brute-force attack against a valid session identifier which could allow an unauthenticated remote attacker to hijack a valid user session. The affected session identifiers are only used in a subset of the endpoints that are provided by the affected products. Siemens is preparing fix versions and recommends countermeasures for products where fixes are not, or not yet available.

CVEs (1)

Remediations

  • Currently no fix is available
  • Update to V11.0 or later version

Affected Vendors

Siemens

Affected Products (63)

Siemens · SIPROTEC 5 6MD84 (CP300) vers:intdot/<11.0
Siemens · SIPROTEC 5 6MD85 (CP200) vers:all/*
Siemens · SIPROTEC 5 6MD85 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 6MD86 (CP200) vers:all/*
Siemens · SIPROTEC 5 6MD86 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 6MD89 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 6MU85 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7KE85 (CP200) vers:all/*
Siemens · SIPROTEC 5 7KE85 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7SA82 (CP100) vers:intdot/>=7.80
Siemens · SIPROTEC 5 7SA82 (CP150) vers:intdot/<11.0
Siemens · SIPROTEC 5 7SA84 (CP200) vers:all/*
Siemens · SIPROTEC 5 7SA86 (CP200) vers:all/*
Siemens · SIPROTEC 5 7SA86 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7SA87 (CP200) vers:all/*
Siemens · SIPROTEC 5 7SA87 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7SD82 (CP100) vers:intdot/>=7.80
Siemens · SIPROTEC 5 7SD82 (CP150) vers:intdot/<11.0
Siemens · SIPROTEC 5 7SD84 (CP200) vers:all/*
Siemens · SIPROTEC 5 7SD86 (CP200) vers:all/*
Siemens · SIPROTEC 5 7SD86 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7SD87 (CP200) vers:all/*
Siemens · SIPROTEC 5 7SD87 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7SJ81 (CP100) vers:intdot/>=7.80
Siemens · SIPROTEC 5 7SJ81 (CP150) vers:intdot/<11.0
Siemens · SIPROTEC 5 7SJ82 (CP100) vers:intdot/>=7.80
Siemens · SIPROTEC 5 7SJ82 (CP150) vers:intdot/<11.0
Siemens · SIPROTEC 5 7SJ85 (CP200) vers:all/*
Siemens · SIPROTEC 5 7SJ85 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7SJ86 (CP200) vers:all/*
Siemens · SIPROTEC 5 7SJ86 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7SK82 (CP100) vers:intdot/>=7.80
Siemens · SIPROTEC 5 7SK82 (CP150) vers:intdot/<11.0
Siemens · SIPROTEC 5 7SK85 (CP200) vers:all/*
Siemens · SIPROTEC 5 7SK85 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7SL82 (CP100) vers:intdot/>=7.80
Siemens · SIPROTEC 5 7SL82 (CP150) vers:intdot/<11.0
Siemens · SIPROTEC 5 7SL86 (CP200) vers:all/*
Siemens · SIPROTEC 5 7SL86 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7SL87 (CP200) vers:all/*
Siemens · SIPROTEC 5 7SL87 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7SS85 (CP200) vers:all/*
Siemens · SIPROTEC 5 7SS85 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7ST85 (CP200) vers:all/*
Siemens · SIPROTEC 5 7ST85 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7ST86 (CP300) vers:intdot/<11.0
Siemens · SIPROTEC 5 7SX82 (CP150) vers:intdot/<11.0
Siemens · SIPROTEC 5 7SX85 (CP300) vers:intdot/<11.0
Siemens · SIPROTEC 5 7SY82 (CP150) vers:intdot/<11.0
Siemens · SIPROTEC 5 7UM85 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7UT82 (CP100) vers:intdot/>=7.80
Siemens · SIPROTEC 5 7UT82 (CP150) vers:intdot/<11.0
Siemens · SIPROTEC 5 7UT85 (CP200) vers:all/*
Siemens · SIPROTEC 5 7UT85 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7UT86 (CP200) vers:all/*
Siemens · SIPROTEC 5 7UT86 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7UT87 (CP200) vers:all/*
Siemens · SIPROTEC 5 7UT87 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7VE85 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7VK87 (CP200) vers:all/*
Siemens · SIPROTEC 5 7VK87 (CP300) vers:intdot/>=7.80|<11.0
Siemens · SIPROTEC 5 7VU85 (CP300) vers:intdot/<11.0
Siemens · SIPROTEC 5 Compact 7SX800 (CP050) vers:intdot/<11.0

Affected Sectors

Critical Manufacturing

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