CVE-2021-42023 is a medium-severity vulnerability affecting Siemens ModelSim and Questa Simulation tools. It stems from insufficient protection of built-in private keys used for decrypting electronic intellectual property (IP) data, potentially allowing a sophisticated attacker to discover these keys and bypass IEEE 1735 protections. The vulnerability has a CVSS score of 6.5, indicating a network-based attack with low complexity and high confidentiality impact, but no integrity or availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:siemens:modelsim:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:siemens:questa:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.