CVE-2025-9340

NONE
2025-08-22 91579145-5d7b-4cc5-b925-a0262ff19630

CVSS 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/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
Attack Vector
Physical
Attack Complexity
Low
Privileges Required
Low
User Interaction
A
Scope
N

Lifecycle Timeline

3
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 28, 2026 - 19:08 vuln.today
CVE Published
Aug 22, 2025 - 10:15 nvd
NONE

Tags

Memory Corruption Buffer Overflow Java

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.

Analysis

Out-of-bounds Write vulnerability in Legion of the Bouncy Castle Inc. Rated low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. 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.1.0 through 2.1.0. Version information: through 2.1.0..

Affected Products

See vendor advisory for affected versions.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).

Priority Score

0
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +0
POC: 0

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CVE-2025-9340 vulnerability details – vuln.today
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