Advisories · Technology

shrec UltrafastSecp256k1.

Every CVE that names shrec UltrafastSecp256k1 among its affected products, newest first. Vendors and products are as the CNA wrote them; check the affected versions on each record.

CVE-2026-55174 CVE record

CVSS 5.9 Medium

UltrafastSecp256k1: ECDSA adaptor verification accepts non-adaptable pre-signatures due to missing DLEQ binding
- shrec UltrafastSecp256k1
- Weak cryptography or TLS
- CWE-345
Not analysed yet 30 Sept 2026