An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66.
Noroxi assessment
Priority: Monitor (action score 34/100)
- Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 7.2% (FIRST EPSS); higher than 94.2% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
- Fixed version: bouncycastle (Debian:12) 1.65-2; org.bouncycastle:bcprov-ext-jdk15on (Maven) 1.67; org.bouncycastle:bcprov-ext-jdk16 (Maven) 1.67.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to bouncycastle (Debian:12) 1.65-2; org.bouncycastle:bcprov-ext-jdk15on (Maven) 1.67; org.bouncycastle:bcprov-ext-jdk16 (Maven) 1.67 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66. The OpenBSDBCrypt.checkPassword utility method compared incorrect data when checking the password, allowing incorrect passwords to indicate they were matching with previously hashed ones that were different.
- Published
- Dec 17, 2020
- Updated
- Jun 16, 2026
- EPSS
- 7.2% · 94th percentile
- CWE
- —
Report tools
Action score
34
Monitor
Low priority for now.
- CVSS
- 32 / 40 · 8.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 2 / 30 · 7.2%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Proof of concept exists, no weaponized module
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| bouncycastle | bc-java | cpe:2.3:a:bouncycastle:bc-java |
| apache | karaf | cpe:2.3:a:apache:karaf |
| oracle | banking corporate lending process management | cpe:2.3:a:oracle:banking_corporate_lending_process_management |
| oracle | banking credit facilities process management | cpe:2.3:a:oracle:banking_credit_facilities_process_management |
| oracle | banking extensibility workbench | cpe:2.3:a:oracle:banking_extensibility_workbench |
| oracle | banking supply chain finance | cpe:2.3:a:oracle:banking_supply_chain_finance |
| oracle | banking virtual account management | cpe:2.3:a:oracle:banking_virtual_account_management |
| oracle | blockchain platform | cpe:2.3:a:oracle:blockchain_platform |
| oracle | commerce guided search | cpe:2.3:a:oracle:commerce_guided_search |
| oracle | communications application session controller | cpe:2.3:a:oracle:communications_application_session_controller |
| oracle | communications cloud native core network slice selection function | cpe:2.3:a:oracle:communications_cloud_native_core_network_slice_selection_function |
| oracle | communications convergence | cpe:2.3:a:oracle:communications_convergence |
and 8 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- apache karaf4.3.2
- bouncycastle bc-java1.65
- bouncycastle bc-java1.66
- oracle banking corporate lending process management14.2.0
- oracle banking corporate lending process management14.3.0
- oracle banking corporate lending process management14.5.0
- oracle banking credit facilities process management14.2.0
- oracle banking credit facilities process management14.3.0
- oracle banking credit facilities process management14.5.0
- oracle banking extensibility workbench14.2.0
- oracle banking extensibility workbench14.3.0
- oracle banking extensibility workbench14.5.0
- oracle banking supply chain finance14.2.0
- oracle banking supply chain finance14.3.0
- oracle banking supply chain finance14.5.0
- oracle banking virtual account management14.2.0
- oracle banking virtual account management14.3.0
- oracle banking virtual account management14.5.0
- oracle blockchain platformbefore 21.1.2
- oracle commerce guided search11.3.2
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | bouncycastle | before 1.65-2 | 1.65-2 |
| Maven | org.bouncycastle:bcprov-ext-jdk15on | from 1.65 · before 1.67 | 1.67 |
| Maven | org.bouncycastle:bcprov-ext-jdk16 | from 1.65 · before 1.67 | 1.67 |
| Maven | org.bouncycastle:bcprov-jdk14 | from 1.65 · before 1.67 | 1.67 |
| Maven | org.bouncycastle:bcprov-jdk15 | from 1.65 · before 1.67 | 1.67 |
| Maven | org.bouncycastle:bcprov-jdk15on | from 1.65 · before 1.67 | 1.67 |
| Maven | org.bouncycastle:bcprov-jdk15to18 | from 1.65 · before 1.67 | 1.67 |
| Maven | org.bouncycastle:bcprov-jdk16 | from 1.65 · before 1.67 | 1.67 |
| openSUSE:Tumbleweed | bouncycastle | before 1.68-3.2 | 1.68-3.2 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-apache-cxf | before 0:3.1.16-3.SP1_redhat_00001.1.ep7.el7 | 0:3.1.16-3.SP1_redhat_00001.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-apache-cxf-rt | before 0:3.1.16-3.SP1_redhat_00001.1.ep7.el7 | 0:3.1.16-3.SP1_redhat_00001.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-apache-cxf-services | before 0:3.1.16-3.SP1_redhat_00001.1.ep7.el7 | 0:3.1.16-3.SP1_redhat_00001.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-apache-cxf-tools | before 0:3.1.16-3.SP1_redhat_00001.1.ep7.el7 | 0:3.1.16-3.SP1_redhat_00001.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-avro | before 0:1.7.6-2.redhat_00003.1.ep7.el7 | 0:1.7.6-2.redhat_00003.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-bouncycastle | before 0:1.68.0-1.redhat_00005.1.ep7.el7 | 0:1.68.0-1.redhat_00005.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-bouncycastle-mail | before 0:1.68.0-1.redhat_00005.1.ep7.el7 | 0:1.68.0-1.redhat_00005.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-bouncycastle-pkix | before 0:1.68.0-1.redhat_00005.1.ep7.el7 | 0:1.68.0-1.redhat_00005.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-bouncycastle-prov | before 0:1.68.0-1.redhat_00005.1.ep7.el7 | 0:1.68.0-1.redhat_00005.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-h2database | before 0:1.4.197-2.redhat_00005.1.ep7.el7 | 0:1.4.197-2.redhat_00005.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-jackson-databind | before 0:2.8.11.6-1.SP1_redhat_00001.1.ep7.el7 | 0:2.8.11.6-1.SP1_redhat_00001.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-jboss-marshalling | before 0:2.0.15-1.Final_redhat_00001.1.ep7.el7 | 0:2.0.15-1.Final_redhat_00001.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-jboss-marshalling-river | before 0:2.0.15-1.Final_redhat_00001.1.ep7.el7 | 0:2.0.15-1.Final_redhat_00001.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-jboss-xnio-base | before 0:3.5.10-1.Final_redhat_00001.1.ep7.el7 | 0:3.5.10-1.Final_redhat_00001.1.ep7.el7 |
| Red Hat:jboss_enterprise_application_platform_eus:7.1::el7 | eap7-wildfly | before 0:7.1.8-2.GA_redhat_00002.1.ep7.el7 | 0:7.1.8-2.GA_redhat_00002.1.ep7.el7 |
+96
Same product
bouncycastle: all recordsOther highest-scoring records for the same primary product.
- CVE-2017-13098BouncyCastle JCE TLS Bleichenbacher/ROBOT60This week
- CVE-2007-6721The Legion of the Bouncy Castle Java Cryptography API before release 1.38, as used in Crypto Provider Package before 1.36, has unknown impac41Plan
- CVE-2018-1000613Legion of the Bouncy Castle Legion of the Bouncy Castle Java Cryptography APIs 1.58 up to but not including 1.60 contains a CWE-470: Use of 40Plan
Published before and after this one in the same product
- ← EarlierCVE-2018-1000180Jun 5, 2018 · 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, speci31Monitor
- ← EarlierCVE-2019-17359Oct 8, 2019 · The ASN.1 parser in Bouncy Castle Crypto (aka BC Java) 1.63 can trigger a large attempted memory allocation, and resultant OutOfMemoryError 33Monitor
- Later →CVE-2023-33201Jul 4, 2023 · Bouncy Castle For Java before 1.74 is affected by an LDAP injection vulnerability.21Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:bouncycastle | 1.65-2 · Debian:12 | Package registry (OSV) |
| Maven:org.bouncycastle:bcprov-ext-jdk15on | 1.67 | Package registry (OSV) |
| Maven:org.bouncycastle:bcprov-ext-jdk16 | 1.67 | Package registry (OSV) |
| Maven:org.bouncycastle:bcprov-jdk14 | 1.67 | Package registry (OSV) |
| Maven:org.bouncycastle:bcprov-jdk15 | 1.67 | Package registry (OSV) |
| Maven:org.bouncycastle:bcprov-jdk15on | 1.67 | Package registry (OSV) |
| Maven:org.bouncycastle:bcprov-jdk15to18 | 1.67 | Package registry (OSV) |
| Maven:org.bouncycastle:bcprov-jdk16 | 1.67 | Package registry (OSV) |
| opensuse:bouncycastle | 1.68-3.2 · openSUSE:Tumbleweed | Package registry (OSV) |
| red hat:eap7-activemq-artemis | 0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-activemq-artemis-cli | 0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-activemq-artemis-commons | 0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-activemq-artemis-core-client | 0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-activemq-artemis-dto | 0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-activemq-artemis-hornetq-protocol | 0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-activemq-artemis-hqclient-protocol | 0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-activemq-artemis-jdbc-store | 0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-activemq-artemis-jms-client | 0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-activemq-artemis-jms-server | 0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-activemq-artemis-journal | 0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-activemq-artemis-ra | 0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Proof-of-concept repository on GitHub ×2
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:0 | 2020-12-19 |
| Proof-of-concept repository on GitHub | stars:0 | 2021-01-04 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoC+1 d
- TodayOct 19, 2026+2132 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-21-0331 · Apr 21, 2021(Oracle Güvenlik Uyarısı Yayınladı)
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (19 more)Show less
- lists.apache.org/thread.html/r167dbc42ef7c59802c2ca1ac14735ef9cf687c25208229993d6206fe%40%3Cissues.karaf.apache.org%3E
- lists.apache.org/thread.html/r175f5a25d100dbe2b1bd3459b3ce882a84c3ff91b120ed4ff2d57b53%40%3Ccommits.pulsar.apache.org%3E
- lists.apache.org/thread.html/r25d53acd06f29244b8a103781b0339c5e7efee9099a4d52f0c230e4a%40%3Ccommits.druid.apache.org%3E
- lists.apache.org/thread.html/r2ddabd06d94b60cfb0141e4abb23201c628ab925e30742f61a04d013%40%3Cissues.karaf.apache.org%3E
- lists.apache.org/thread.html/r30a139c165b3da6e0d5536434ab1550534011b1fdfcd2f5d95892c5b%40%3Cissues.karaf.apache.org%3E
- lists.apache.org/thread.html/r37d332c0bf772f4982d1fdeeb2f88dd71dab6451213e69e43734eadc%40%3Ccommits.pulsar.apache.org%3E
- lists.apache.org/thread.html/r4e1619cfefcd031fac62064a3858f5c9229eef907bd5d8ef14c594fc%40%3Cissues.karaf.apache.org%3E
- lists.apache.org/thread.html/r77af3ac7c3bfbd5454546e13faf7aec21d627bdcf36c9ca240436b94%40%3Cissues.karaf.apache.org%3E
- lists.apache.org/thread.html/r8c36ba34e80e05eecb1f80071cc834d705616f315b634ec0c7d8f42e%40%3Cissues.solr.apache.org%3E
- lists.apache.org/thread.html/r954d80fd18e9dafef6e813963eb7e08c228151c2b6268ecd63b35d1f%40%3Ccommits.druid.apache.org%3E
- lists.apache.org/thread.html/rc9e441c1576bdc4375d32526d5cf457226928e9c87b9f54ded26271c%40%3Cissues.karaf.apache.org%3E
- lists.apache.org/thread.html/rcd37d9214b08067a2e8f2b5b4fd123a1f8cb6008698d11ef44028c21%40%3Cissues.karaf.apache.org%3E
- lists.apache.org/thread.html/rdcbad6d8ce72c79827ed8c635f9a62dd919bb21c94a0b64cab2efc31%40%3Cissues.karaf.apache.org%3E
- lists.apache.org/thread.html/rddd2237b8636a48d573869006ee809262525efb2b6ffa6eff50d2a2d%40%3Cjira.kafka.apache.org%3E
- lists.apache.org/thread.html/rdfd2901b8b697a3f6e2c9c6ecc688fd90d7f881937affb5144d61d6e%40%3Ccommits.druid.apache.org%3E
- lists.apache.org/thread.html/rf9abfc0223747a56694825c050cc6b66627a293a32ea926b3de22402%40%3Cissues.karaf.apache.org%3E
- lists.apache.org/thread.html/rfc0db1f3c375087e69a239f9284ded72d04fbb55849eadde58fa9dc2%40%3Cissues.karaf.apache.org%3E
- www.bouncycastle.org/releasenotes.html
- www.oracle.com//security-alerts/cpujul2021.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.