Bouncy Castle BC Java before 1.66, BC C# .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multiple deterministic ECDSA signatures.
History

Thu, 17 Jul 2025 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Bouncycastle fips Java Api
CPEs cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-fips-java-api:*:*:*:*:*:*:*:* cpe:2.3:a:bouncycastle:fips_java_api:*:*:*:*:*:*:*:*
Vendors & Products Bouncycastle legion-of-the-bouncy-castle-fips-java-api
Bouncycastle fips Java Api

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-05-20T11:20:18

Updated: 2024-08-04T13:15:20.863Z

Reserved: 2020-07-04T00:00:00

Link: CVE-2020-15522

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-05-20T12:15:08.003

Modified: 2025-07-17T17:04:58.987

Link: CVE-2020-15522

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-05-20T00:00:00Z

Links: CVE-2020-15522 - Bugzilla