{"api_version":"1","generated_at":"2026-10-02T11:06:35+00:00","cve":"CVE-2026-63575","urls":{"html":"https://cve.report/CVE-2026-63575","api":"https://cve.report/api/cve/CVE-2026-63575.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-63575","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63575"},"summary":{"title":"PKCS#12 key derivation loops about 2^32 times on a zero or negative iteration count","description":"Loop with unreachable exit condition in the PKCS#12 key derivation (Pkcs12ParametersGenerator) in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who can supply a PKCS#12 (PFX) file, or a PKCS#8 encrypted private key that uses a PKCS#12 password-based encryption algorithm, to cause a denial of service through CPU exhaustion via an iteration count of zero or below, because the derivation loop ran until its counter equalled the count, so for such a count it wrapped through about 2^32 iterations before the MAC or the password could be checked. 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