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Fencer Intel
medium 5.9

CVE-2025-9341 json

Garbage collection can delay for AES CBC Native support, resulting in heap exhaustion

published last yr. modified 4mo ago also GHSA-jfcv-jv9g-2vx2 , EUVD-2025-25504

cvss
5.9
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.bouncycastle:bc-fips 2.1.1
  • maven org.bouncycastle:bctls-fips 2.73.8

Is CVE-2025-9341 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-9341 updated cvss 6.2

org.bouncycastle/bc-fips: Bouncy Castle for Java FIPS: Denial of Service via excessive memory allocation

  • Red Hat JBoss Enterprise Application Platform 8 bc-fips Red Hat JBoss Enterprise Application Platform Expansion Pack bc-fips
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 5.9 CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/S:P/AU:N/R:U/V:C/RE:M/U:Amber
CNA 4.0 5.9 CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/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:P/AU:N/R:U/V:C/RE:M/U:Amber

Affected packages

ecosystem package affected fixed in
maven org.bouncycastle:bc-fips
>=2.1.0, <2.1.1
2.1.1
maven org.bouncycastle:bctls-fips
>=2.73.7, <2.73.8
2.73.8

Affected products

  • Legion of the Bouncy Castle Inc. Bouncy Castle for Java FIPS
  • Legion of the Bouncy Castle Inc. Bouncy Castle for Java LTS

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.