HOMEVULNERABILITIESCVE-2023-33201
MEDIUM

CVE-2023-33201

CWE-295Published: July 5, 2023· Updated: Jun 17, 2026

5.3
CVSS v3.1

Official Description

Bouncy Castle For Java before 1.74 is affected by an LDAP injection vulnerability. The vulnerability only affects applications that use an LDAP CertStore from Bouncy Castle to validate X.509 certificates. During the certificate validation process, Bouncy Castle inserts the certificate's Subject Name into an LDAP search filter without any escaping, which leads to an LDAP injection vulnerability.

NVD Source

Technical Analysis

CVE-2023-33201 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

bouncycastle1 product(s)
bc-java
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/bcgit/bc-java/commit/e8c409a8389c815ea3fda5e8b94c92fdfe583bcc
PATCHhttps://github.com/bcgit/bc-java/commit/e8c409a8389c815ea3fda5e8b94c92fdfe583bcc
ADVISORYhttps://github.com/bcgit/bc-java/wiki/CVE-2023-33201
ADVISORYhttps://github.com/bcgit/bc-java/wiki/CVE-2023-33201

All References (10)

→
https://bouncycastle.orgProduct
→
https://github.com/bcgit/bc-java/commit/e8c409a8389c815ea3fda5e8b94c92fdfe583bccPatch
→
https://github.com/bcgit/bc-java/wiki/CVE-2023-33201Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2023/08/msg00000.html
→
https://security.netapp.com/advisory/ntap-20230824-0008/
→
https://bouncycastle.orgProduct
→
https://github.com/bcgit/bc-java/commit/e8c409a8389c815ea3fda5e8b94c92fdfe583bccPatch
→
https://github.com/bcgit/bc-java/wiki/CVE-2023-33201Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2023/08/msg00000.html
→
https://security.netapp.com/advisory/ntap-20230824-0008/

Quick Facts

CVE IDCVE-2023-33201
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-295
CISA KEVNo
Affected1 vendor(s)
PublishedJul 5, 2023

Related CVEs (CWE-295)

CVE-2026-4370
10.0
CVE-2017-7406
9.8
CVE-2017-17301
9.8
CVE-2022-21654
9.8
CVE-2019-6266
9.8
CVE-2016-1000030
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-33201 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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