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ICSA-25-044-13: Siemens SIMATIC PCS neo, TIA Administrator, and TIA Portal

CISA advisory · released 2025-02-11

Source record Collected from CISA's CSAF advisory feed

CISA's summary

Summary: Affected products do not correctly invalidate user sessions upon user logout. This could allow a remote unauthenticated attacker, who has obtained the session token by other means, to re-use a legitimate user's session even after logout. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens recommends countermeasures for products where fixes are not, or not yet available.

Products, as the advisory lists them

VendorProductVersion
SiemensSIMATIC PCS neo V4.0vers:all/*
SiemensSIMATIC PCS neo V4.1<V4.1_Update_2
SiemensSIMATIC PCS neo V5.0<V5.0_Update_1
SiemensSIMOCODE ES V19<V19_Update_1
SiemensSIRIUS Safety ES V19 (TIA Portal)<V19_Update_1
SiemensSIRIUS Soft Starter ES V19 (TIA Portal)<V19_Update_1
SiemensTIA Administrator<V3.0.4

DeSpy has not checked any unit, hardware revision or firmware.

Vulnerabilities in this advisory

Acknowledgments, as the advisory lists them

The advisory's legal notice

The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.

Sources

DeSpy's copy of this version is dated 2026-09-28.

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