Main Vulnerability Database Vulnerabilities #VU132270

Resource exhaustion in Bouncy Castle for Java FIPS and Bouncy Castle for Java LTS - CVE-2025-9341

Published: May 25, 2026

Vulnerability identifier: #VU132270

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-9341

CWE-ID: CWE-400

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled resource consumption in org/bouncycastle/crypto/fips/AESNativeCBC.Java when processing input. A remote attacker can trigger excessive allocation to cause a denial of service.

Affected software

Bouncy Castle for Java FIPS
Bouncy Castle for Java LTS

How to mitigate CVE-2025-9341

Install security update from vendor's website.

Bouncy Castle for Java FIPS - update to 2.1.1
Bouncy Castle for Java LTS - update to 2.73.8

External References

https://github.com/advisories/GHSA-jfcv-jv9g-2vx2

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