CVE-2023-33242: LINDELL17 Project LINDELL17

High severity, CVSS 8.1. EPSS: 1.5% chance of exploitation in the next 30 days.

Crypto wallets implementing the Lindell17 TSS protocol might allow an attacker to extract the full ECDSA private key by exfiltrating a single bit in every signature attempt (256 in total) because of not adhering to the paper's security proof's assumption regarding handling aborts after a failed signature.

Affected products

Published 2023-08-09. Last modified 2026-06-17.