CVE-2025-9340 – Bouncy Castle for Java BC-FIPS Out-of-Bounds Write Vulnerability

The following table lists the changes that have been made to the
CVE-2025-9340 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by 91579145-5d7b-4cc5-b925-a0262ff19630

    Aug. 22, 2025

    Action Type Old Value New Value
    Added Description Out-of-bounds Write vulnerability in Legion of the Bouncy Castle Inc. Bouncy Castle for Java bc-fips on All (API modules). This vulnerability is associated with program files org/bouncycastle/jcajce/provider/BaseCipher.

    This issue affects Bouncy Castle for Java: from BC-FJA 2.1.0 through 2.1.0.

    Added CVSS V4.0 AV:P/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:X/R:U/V:X/RE:M/U:Green
    Added CWE CWE-787
    Added Reference https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902025%E2%80%909340
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