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CVE-2023-33201

20
FAUCET Score

CVE-2023-33201 is an LDAP injection vulnerability affecting Bouncy Castle for Java versions prior to 1.74. Specifically, it impacts applications utilizing an LDAP CertStore for X.509 certificate validation, where the certificate's Subject Name is unescaped in an LDAP search filter. This vulnerability carries a CVSS score of 5.3 (Medium), indicating a network-based attack with low complexity, requiring no privileges or user interaction, and potentially leading to a loss of confidentiality. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.74CPE matchmatch criteria
cpe:2.3:a:bouncycastle:bc-java:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.77%
Probability of exploitation in next 30 days
EPSS Percentile
52.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0077 is in the 32nd percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (49)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: org.bouncycastle:bcprov-debug-jdk15to18Fixed in: 1.74
mavenpatch availablevia ghsa
Product: org.bouncycastle:bcprov-debug-jdk18onFixed in: 1.74
mavenpatch availablevia ghsa
Product: org.bouncycastle:bcprov-jdk14Fixed in: 1.74
mavenpatch availablevia ghsa
Product: org.bouncycastle:bcprov-ext-jdk14Fixed in: 1.74
mavenpatch availablevia ghsa
Product: org.bouncycastle:bcprov-debug-jdk14Fixed in: 1.74
mavenpatch availablevia ghsa
Product: org.bouncycastle:bcprov-jdk18onFixed in: 1.74
mavenpatch availablevia ghsa
Product: org.bouncycastle:bcprov-jdk15to18Fixed in: 1.74
mavenpatch availablevia ghsa
Product: org.bouncycastle:bcprov-ext-jdk18onFixed in: 1.74
mavenpatch availablevia ghsa
Product: org.bouncycastle:bcprov-ext-jdk15to18Fixed in: 1.74
redhatpatch availablevia redhat_api
Product: Red Hat AMQ Streams 2.7.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Fuse 7.12Fixed in: bouncycastle
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 7Fixed in: bouncycastle
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8Fixed in: eap7-bouncycastle-0:1.76.0-4.redhat_00001.1.el8eap
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9Fixed in: eap7-bouncycastle-0:1.76.0-4.redhat_00001.1.el9eap
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7Fixed in: eap7-bouncycastle-0:1.76.0-4.redhat_00001.1.el7eap
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Single Sign-On 7Fixed in: bouncycastle
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Single Sign-On 7.6 for RHEL 7Fixed in: rh-sso7-keycloak-0:18.0.11-2.redhat_00001.1.el7sso
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Single Sign-On 7.6 for RHEL 8Fixed in: rh-sso7-keycloak-0:18.0.11-2.redhat_00001.1.el8sso
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Single Sign-On 7.6 for RHEL 9Fixed in: rh-sso7-keycloak-0:18.0.11-2.redhat_00001.1.el9sso
View patch
redhatpatch availablevia redhat_api
Product: RHEL-8 based Middleware ContainersFixed in: rh-sso-7/sso76-openshift-rhel8:7.6-36
View patch
redhatpatch availablevia redhat_api
Product: RHPAM 7.13.5 asyncFixed in: bouncycastle
View patch
redhatpatch availablevia redhat_api
Product: RHINT Camel-Springboot 3.18.3.2Fixed in: bouncycastle
View patch
redhatpatch availablevia redhat_api
Product: AMQ Broker 7.11.5Fixed in: bouncycastle
View patch
redhatpatch availablevia redhat_api
Product: Cryostat 2 on RHEL 8Fixed in: cryostat-tech-preview/cryostat-grafana-dashboard-rhel8:2.4.0-2
View patch
redhatpatch availablevia redhat_api
Product: Cryostat 2 on RHEL 8Fixed in: cryostat-tech-preview/cryostat-operator-bundle:2.4.0-2
View patch
redhatpatch availablevia redhat_api
Product: Cryostat 2 on RHEL 8Fixed in: cryostat-tech-preview/cryostat-reports-rhel8:2.4.0-2
View patch
redhatpatch availablevia redhat_api
Product: Cryostat 2 on RHEL 8Fixed in: cryostat-tech-preview/cryostat-rhel8:2.4.0-2
View patch
redhatpatch availablevia redhat_api
Product: Cryostat 2 on RHEL 8Fixed in: cryostat-tech-preview/cryostat-rhel8-operator:2.4.0-3
View patch
redhatpatch availablevia redhat_api
Product: Cryostat 2 on RHEL 8Fixed in: cryostat-tech-preview/jfr-datasource-rhel8:2.4.0-2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat AMQ Streams 2.5.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat AMQ Streams 2.6.0Fixed in: bouncycastle
View patch
ubuntupatch availablevia ubuntu_usn
Product: bouncycastle (focal)Fixed in: 1.61-1ubuntu0.1~esm1
ubuntupatch availablevia ubuntu_usn
Product: bouncycastle (noble)Fixed in: 1.77-1ubuntu0.1~esm1
ubuntupatch availablevia ubuntu_usn
Product: bouncycastle (xenial)Fixed in: 1.51-4ubuntu1+esm1
ubuntupatch availablevia ubuntu_usn
Product: bouncycastle (bionic)Fixed in: 1.59-1ubuntu0.1~esm1
ubuntupatch availablevia ubuntu_usn
Product: bouncycastle (jammy)Fixed in: 1.68-5ubuntu0.1~esm1
redhatno patchvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform Expansion PackFixed in: bouncycastle
redhatno patchvia redhat_api
Product: Red Hat Decision Manager 7Fixed in: bouncycastle
redhatend of lifevia redhat_api
Product: Migration Toolkit for Applications 6Fixed in: bouncycastle
redhatend of lifevia redhat_api
Product: Red Hat Integration Camel Quarkus 2Fixed in: bouncycastle
redhatend of lifevia redhat_api
Product: Red Hat JBoss Data Grid 7Fixed in: bouncycastle
redhatend of lifevia redhat_api
Product: Red Hat Integration Camel K 1Fixed in: bouncycastle
redhatend of lifevia redhat_api
Product: Migration Toolkit for RuntimesFixed in: bouncycastle
redhatend of lifevia redhat_api
Product: Red Hat build of Apicurio Registry 2Fixed in: bouncycastle
redhatend of lifevia redhat_api
Product: Red Hat build of Debezium 1Fixed in: bouncycastle
redhatend of lifevia redhat_api
Product: Red Hat build of Debezium 2Fixed in: bouncycastle
redhatend of lifevia redhat_api
Product: Red Hat build of QuarkusFixed in: org.bouncycastle/bcprov-jdk15on
redhatend of lifevia redhat_api
Product: Red Hat Data Grid 8Fixed in: bouncycastle

Vendor Advisories (3)

ubuntuUSN-8108-1

Bouncy Castle vulnerabilities

Mar 18, 2026
mavenGHSA-hr8g-6v94-x4m9medium

Bouncy Castle For Java LDAP injection vulnerability

Jul 5, 2023
redhatCVE-2023-33201Moderate

bouncycastle: potential blind LDAP injection attack using a self-signed certificate

Jun 16, 2023

References

bouncycastle.org
Product
github.com / bcgit/bc-java/commit/e8c409a8389c815ea3fda5e8b94c92fdfe583bcc
Patch
github.com / bcgit/bc-java/wiki/CVE-2023-33201
Vendor Advisory
lists.debian.org / debian-lts-announce/2023/08/msg00000.html
security.netapp.com / advisory/ntap-20230824-0008