VULNERABILITY INTELLIGENCE

CVE-2021-42023

CVSS score6.5 MEDIUM
EPSS probability0.58%
CISA KEVNot currently listed
Published2021-12-14
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

A vulnerability has been identified in ModelSim Simulation (All versions), Questa Simulation (All versions). The RSA white-box implementation in affected applications insufficiently protects the built-in private keys that are required to decrypt electronic intellectual property (IP) data in accordance with the IEEE 1735 recommended practice. This could allow a sophisticated attacker to discover the keys, bypassing the protection intended by the IEEE 1735 recommended practice.

Weakness classification

  • productcert@siemens.com: CWE-522

Primary references