← Database

CVE-2021-43569

CRITICAL CVSS: 9.8 Published: 2021-11-09 Modified: 2026-06-17

Description

The verify function in the Stark Bank .NET ECDSA library (ecdsa-dotnet) 1.3.1 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.

Affected Platforms

Starkbank Ecdsa-Dotnet

Weakness Type

CWE-347

References