CVE-2021-42029

A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) V15 (All versions), SIMATIC STEP 7 (TIA Portal) V16 (All versions < V16 Update 5), SIMATIC STEP 7 (TIA Portal) V17 (All versions < V17 Update 2). An attacker could achieve privilege escalation on the web server of certain devices due to improper access control vulnerability in the engineering system software. The attacker needs to have direct access to the impacted web server.

• CWE-284

• https://cert-portal.siemens.com/productcert/pdf/ssa-350757.pdfPatch, Vendor Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-350757.pdfPatch, Vendor Advisory

Published

Apr 12, 2022

Last Modified

Jun 17, 2026

Status

Modified

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