CVE-2025-9340

Name: CVE-2025-9340
Creator: NVD / NIST
Published: 2025-08-22T10:15:33.05+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

NONECVSS 0/10EPSS 0.15%

Last modified Jun 17, 2026

CVE-2025-9340 is a none-severity vulnerability. Out-of-bounds Write vulnerability in Legion of the Bouncy Castle Inc. Bouncy Castle for Java bc-fips on All (API modules). EPSS estimates a 0.15% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 4.0

0/10

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/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

EPSS Probability

0.15%

4.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

References

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

Timeline

Published: Aug 22, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-9340?

How severe is CVE-2025-9340?

Severity scoring for CVE-2025-9340 is pending analysis. The EPSS model estimates a 0.15% probability of exploitation in the next 30 days.

How do I fix CVE-2025-9340?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-9340?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST