{"cve":"CVE-2025-9340","nvd":{"published":"2025-08-22T10:15:33.050","modified":"2026-06-17T10:08:46.973","status":"Deferred","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.\n\nThis issue affects Bouncy Castle for Java: from BC-FJA 2.1.0 through 2.1.0.","cvss_v4":{"vector":"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","score":0.0},"cvss_v3":null,"cwes":["CWE-787"],"references":["https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902025%E2%80%909340"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:07:46.309729541+00:00"},"epss":{"cve":"CVE-2025-9340","score":0.00177,"percentile":0.07305,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-g6rx-6wfx-gj74","url":"https://osv.dev/vulnerability/GHSA-g6rx-6wfx-gj74","summary":"Bouncy Castle for Java has Out-of-Bounds Write Vulnerability","modified":"2025-08-22T21:27:30.751452Z","packages":[{"ecosystem":"Maven","name":"org.bouncycastle:bc-fips","purl":"pkg:maven/org.bouncycastle/bc-fips","ranges":[">=2.1.0 <2.1.1"],"fixed":["2.1.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}