CVE-2025-9341: Garbage collection can delay for AES CBC Native support, resulting in heap exhaustion

Severity: medium (CVSS 5.9 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-08-22 · updated 2026-06-17
Weakness: CWE-400

Description

Uncontrolled Resource Consumption vulnerability in Legion of the Bouncy Castle Inc. Bouncy Castle for Java FIPS bc-fips on All (API modules), Legion of the Bouncy Castle Inc. Bouncy Castle for Java LTS bcprov-lts8on on All (API modules) allows Excessive Allocation. This vulnerability is associated with program files org/bouncycastle/crypto/fips/AESNativeCBC.Java, org/bouncycastle/crypto/engines/AESNativeCBC.Java. This issue affects Bouncy Castle for Java FIPS: 2.1.0; Bouncy Castle for Java LTS: from 2.73.0 through 2.73.7.

Affected products

Legion of the Bouncy Castle Inc. Bouncy Castle for Java FIPS: 2.1.0
Legion of the Bouncy Castle Inc. Bouncy Castle for Java LTS: from 2.73.0 through 2.73.7

References

https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902025%E2%80%909341

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