CVE-2021-43569 is a critical vulnerability in the Stark Bank .NET ECDSA library (ecdsa-dotnet) version 1.3.1, where the verify function fails to validate non-zero signatures, enabling attackers to forge signatures on arbitrary messages. This flaw carries a CVSS score of 9.8 (Critical), indicating an easily exploitable network-based attack with high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation or publicly available exploit code, the vulnerability has garnered significant community discussion, suggesting awareness among security researchers.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.3.2CPE matchmatch criteria | cpe:2.3:a:starkbank:ecdsa-dotnet:1.3.2:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.