CVE-2025-9340

native encrypt/decrypt operations in JCE may corrupt data if same byte array used for input and output.

CVSS 0 NONEEPSS 0.2%CWE-787

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 0EPSS 0.2%KEV nãoPoC —Patch —

Lifecycle

22 Aug 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:4.0/AV:P/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/S:N/R:U/RE:M/U:Green

Affected products

Legion of the Bouncy Castle Inc. · Bouncy Castle for Java

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References

https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902025%E2%80%909340