Vulnerabilities (CVE)

Filtered by vendor Bouncycastle Subscribe
Filtered by product Bc-csharp
Total 22 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2026-63568 1 Bouncycastle 1 Bc-csharp 2026-10-27 N/A 7.5 HIGH
Allocation of resources without limits or throttling in the CMP/CRMF password-based MAC verifier (PKMacBuilder) in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote unauthenticated attacker to cause a denial of service through CPU exhaustion via a CMP message or CRMF certificate request whose PBMParameter declares a very large iteration count, because PKMacBuilder enforced its iteration-count ceiling only when the caller had supplied an explicit maximum through the PKMacBuilder(IPKMacPrimitivesProvider, int) constructor. With any other constructor, ProtectedPkiMessage.Verify and CertificateRequestMessage.IsValidSigningKeyPop performed as many hash iterations as the sender requested, up to about 2^31, before the MAC could be checked.
CVE-2020-15522 1 Bouncycastle 4 Bc-csharp, Bouncy Castle Fips .net Api, Fips Java Api and 1 more 2026-06-17 4.3 MEDIUM 5.9 MEDIUM
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.