CVE-2020-15522

    Dashboard / Vulnerabilities / CVE-2020-15522

    CVE-2020-15522

    Published: 20 May 2021Last Modified: 8 Jul 2026

    Summary:

    Details: 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.

    References: https://github.com/bcgit/bc-csharp/wiki/CVE-2020-15522, https://github.com/bcgit/bc-java/wiki/CVE-2020-15522, https://security.netapp.com/advisory/ntap-20210622-0007/, https://www.bouncycastle.org/releasenotes.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -1cbd476c1eaf32a928a926ebb0ec346821753661

    Affected versions

    release-1.8.6
    release-1.8.5
    release-1.8.4
    release-1.8.3
    release-1.8.2
    release-1.8.1
    release-1.8.0
    release-1.8.0-RC.3
    release-1.8.0-RC.2
    release-1.8.0-RC.1
    release-1.8.0-beta.4
    release-1.8.0-beta.3
    release-1.8.0-beta.2
    release-1.8.0-beta.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2020-15522 | CVE-DB