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ICS Advisories

Advisories specifically aimed at industrial control systems — from CISA ICS-CERT and directly from vendors (including Siemens, ABB, Schneider Electric, WAGO and Phoenix Contact) — including revision history (initial publication, Update A, Update B) and linked CVEs.

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Advisory data: live connection— last retrieved: 8 November 2026 at 05:45.

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VDE-2024-009

Welotec: Two vulnerabilities in TK500v1 router series

Welotec — TK500v1

Welotec PSIRTcritical

Published

9 April 2024

Last update

14 May 2025

Affected sectors

Risk evaluation

Welotec has closed two vulnerabilities in the TK500v1 router series and advises to update the routers to firmware version r5542 or later. An exploitation of the vulnerabilities can allow an attacker to manipulate the device.

Mitigation summary

Update the product to firmware v2.3.0.r5542 or later.

Revision history (4)
  1. Initial publication — 7 June 2023

    initial revision

  2. Update A — 4 June 2024

    Minor typo changes. Reorder Products and Branches. Duplicate remediation from document notes to the vulnerabilities.

  3. Update B — 6 November 2024

    Fix: correct certvde domain, added self-reference

  4. Update C — 14 May 2025

    Fix: firmware category, added distribution, version space

Official source: Welotec PSIRT