CVE-2025-9340

0.0 infoEPSS 0.2%

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.

Severity

CVSS 4.0

0.0 none

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2025-08-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Packages (OSV)

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-g6rx-6wfx-gj74	Maven	org.bouncycastle:bc-fips	>=2.1.0 <2.1.1	2.1.1

References

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

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