CVE-2025-9340: Legion Of The Bouncy Castle Inc Bouncy Castle For Java

None severity, CVSS 0.0. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Legion Of The Bouncy Castle Inc Bouncy Castle For Java

Published 2025-08-22. Last modified 2026-06-17.