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Legion of the Bouncy Castle Inc.

Records110All Threatist records
Exploited (KEV)0None in CISA KEV
CVSS critical9CVSS 9.0–10.0
CVSS high68CVSS 7.0–8.9

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Legion of the Bouncy Castle Inc. records in CISA KEV

No Legion of the Bouncy Castle Inc. vulnerabilities are listed in CISA KEV.

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Records

22 records in Bc-csharp · all components

Priority MEDIUM 47

Improper input validation in DHAgreement.CalculateAgreement (MTI/A0 two-pass Diffie-Hellman) in Legion of the Bouncy Castle Inc.

CVSS 4.0CRITICAL 9.1 Network No auth No interaction EPSS 0.00326 Published 2026-10-02 Fixed in 2.7.0 CWE-20
Priority MEDIUM 44

Memory allocation with excessive size value in the OpenPGP signature and user attribute subpacket parsers (SignatureSubpacketsParser.ReadPacket, UserAttributeSubpacketsParser.ReadPacket) in Legion of the Bouncy Castle In…

CVSS 4.0HIGH 8.7 Network No auth No interaction EPSS 0.00426 Published 2026-10-02 Fixed in 2.7.0 CWE-789
Priority LOW 35

Improper certificate validation in PkixNameConstraintValidator (ExtractHostFromURL) in Legion of the Bouncy Castle Inc.

CVSS 4.0HIGH 8.2 Network No auth No interaction EPSS 0.00212 Published 2026-10-02 Fixed in 2.7.0 CWE-295
Priority LOW 35

Exposure of the message authentication key through the encryption keystream in the stream mode of IesEngine (an IesEngine constructed without a block cipher) in Legion of the Bouncy Castle Inc.

CVSS 4.0HIGH 8.2 Network No auth No interaction EPSS 0.00152 Published 2026-10-02 Fixed in 2.7.0 CWE-354
Priority LOW 31

Allocation of resources without limits in password-based private-key decryption (PbeUtilities.GenerateCipherParameters) in Legion of the Bouncy Castle Inc.

CVSS 4.0HIGH 7.1 Network No auth User interaction EPSS 0.00376 Published 2026-10-02 Fixed in 2.7.0 CWE-770
Priority LOW 30

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…

CVSS 3.1MEDIUM 5.9 Network No auth No interaction EPSS 0.01522 Published 2021-05-20 Partial fix · 1.0.2.1, 1.66 +1 CWE-362
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