CVE-2019-14853: Python-Ecdsa Project Python-Ecdsa

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

An error-handling flaw was found in python-ecdsa before version 0.13.3. During signature decoding, malformed DER signatures could raise unexpected exceptions (or no exceptions at all), which could lead to a denial of service.

Affected products

• Python-Ecdsa Project Python-Ecdsa: before 0.13.3 (fixed in 0.13.3)

Published 2019-11-26. Last modified 2026-06-17.