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I. Basic Information for CVE-2025-9340
Vulnerability Information

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Vulnerability Title
native encrypt/decrypt operations in JCE may corrupt data if same byte array used for input and output.
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
Bouncy Castle 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bouncy Castle是Bouncy Castle组织的密码学中使用的API集合。它包括适用于Java和C#编程语言的API 。 Bouncy Castle for Java BC-FJA 2.1.0版本存在安全漏洞,该漏洞源于越界写入,可能导致执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
Legion of the Bouncy Castle Inc.Bouncy Castle for Java BC-FJA 2.1.0 ~ 2.1.0 -
II. Public POCs for CVE-2025-9340
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III. Intelligence Information for CVE-2025-9340
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IV. Related Vulnerabilities
V. Comments for CVE-2025-9340

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