How severe is CVE-2025-9341?

CVE-2025-9341 has a CVSS 4.0 base score of 5.9, rated medium severity.

Is CVE-2025-9341 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-9341?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-9341 have an EU (EUVD) identifier?

Yes. CVE-2025-9341 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25504.

When was CVE-2025-9341 published?

CVE-2025-9341 was published on 2025-08-22 and last updated on 2026-06-17.

CVE-2025-9341

CVE-2025-9341 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 4.0 base score 5.9)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25504
Weakness: CWE-400
Published: 2025-08-22
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-9341?: 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.
How severe is CVE-2025-9341?: CVE-2025-9341 has a CVSS 4.0 base score of 5.9, rated medium severity.
Is CVE-2025-9341 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-9341?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-9341 have an EU (EUVD) identifier?: Yes. CVE-2025-9341 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25504.
When was CVE-2025-9341 published?: CVE-2025-9341 was published on 2025-08-22 and last updated on 2026-06-17.

References

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

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