VULNERABILITY INTELLIGENCE

CVE-2021-42029

CVSS score7.8 HIGH
EPSS probability0.24%
CISA KEVNot currently listed
Published2022-04-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

  • productcert@siemens.com: CWE-284
  • nvd@nist.gov: NVD-CWE-Other

Primary references