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Vulnerability Assessment

Weakness
CWE
CWE-327
OWASP Top 10:2025
A04:2025 - Cryptographic Failures
ASVS 5.0
V11 - Cryptography Approved algorithm selection
Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 3.6% exploitation probability (EPSS)

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AnalysisAI

Bouncy Castle BC 1.54 - 1.59, BC-FJA 1.0.0, BC-FJA 1.0.1 and earlier have a flaw in the Low-level interface to RSA key pair generator, specifically RSA Key Pairs generated in low-level API with added. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

maven org.bouncycastle:bcprov-jdk14 fix: 1.60
maven org.bouncycastle:bcprov-jdk15 fix: 1.60
maven org.bouncycastle:bcprov-jdk15on fix: 1.60

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 3 packages in maven

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Technical ContextAI · show details

This vulnerability is classified under CWE-327. Bouncy Castle BC 1.54 - 1.59, BC-FJA 1.0.0, BC-FJA 1.0.1 and earlier have a flaw in the Low-level interface to RSA key pair generator, specifically RSA Key Pairs generated in low-level API with added certainty may have less M-R tests than expected. This appears to be fixed in versions BC 1.60 beta 4 and later, BC-FJA 1.0.2 and later. Affected products include: Bouncycastle Bc-Java, Bouncycastle Fips Java Api, Debian Debian Linux, Oracle Api Gateway, Oracle Business Process Management Suite.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

Bouncy Castle BC 1.54 - 1.59, BC-FJA 1.0.0, BC-FJA 1.0.1 and earlier have a flaw in the Low-level interface to RSA key pair generator, specifically RSA Key Pairs generated in low-level API with added certainty may have less M-R tests than expected. This appears to be fixed in versions BC 1.60 beta 4 and later, BC-FJA 1.0.2 and later.

Threat Intelligence Overview

EPSS Score
3.6%
Top 12% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 3.6%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

42
Low Medium High Critical
KEV: 0
EPSS: +4
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:bouncycastle:bc-java:*:*:*:*:*:*:*:*
cpe:2.3:a:bouncycastle:fips_java_api:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:api_gateway:11.1.2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:business_process_management_suite:11.1.1.9.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:business_process_management_suite:12.1.3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:business_process_management_suite:12.2.1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:business_transaction_management:12.1.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_application_session_controller:3.7.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_application_session_controller:3.8.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_converged_application_server:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_webrtc_session_controller:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_repository:12.1.3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:managed_file_transfer:12.1.3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:managed_file_transfer:12.2.1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.55:*:*:*:*:*:*:*
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:*
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_convenience_and_fuel_pos_software:2.8.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_xstore_point_of_service:7.0:*:*:*:*:*:*:*
+ 9 more

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References

Advisories & patches
PATCH https://github.com/bcgit/bc-java/commit/22467b6e8fe19717ecdf201c0cf91bacf04a55ad PATCH https://github.com/bcgit/bc-java/commit/73780ac522b7795fc165630aba8d5f5729acc839 PATCH https://security.netapp.com/advisory/ntap-20190204-0003/ PATCH https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html PATCH https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html REF http://www.securityfocus.com/bid/106567 REF https://access.redhat.com/errata/RHSA-2018:2423 REF https://access.redhat.com/errata/RHSA-2018:2424 REF https://access.redhat.com/errata/RHSA-2018:2425 REF https://access.redhat.com/errata/RHSA-2018:2428 REF https://access.redhat.com/errata/RHSA-2018:2643 REF https://access.redhat.com/errata/RHSA-2018:2669 REF https://access.redhat.com/errata/RHSA-2019:0877 REF https://github.com/bcgit/bc-java/wiki/CVE-2018-1000180 REF https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apache.org%3E REF https://www.bountysource.com/issues/58293083-rsa-key-generation-computation-of-iterations-for-mr-primality-test REF https://www.debian.org/security/2018/dsa-4233 REF https://www.oracle.com/security-alerts/cpuApr2021.html REF https://www.oracle.com/security-alerts/cpuapr2020.html REF https://www.oracle.com/security-alerts/cpuoct2020.html REF https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html

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