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CVE-2025-9340

Good to know:

Date: August 22, 2025

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 Score

0.0

Related Resources (4)

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

Url: https://github.com/bcgit/bc-java

Url: https://nvd.nist.gov/vuln/detail/CVE-2025-9340

Url: https://www.mend.io/vulnerability-database/CVE-2025-9340

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Top Fix

Upgrade Version

Upgrade to version org.bouncycastle:bc-fips:2.1.1

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CVSS v3.1

Base Score:	0.0
Attack Vector (AV):	PHYSICAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	REQUIRED
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	NONE