# CVE-2023-33202: Bouncy Castle Denial of Service (DoS) Source: https://junglewise.ai/threats/cve-2023-33202-bouncy-castle-denial-of-service-dos Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Published: 2023-11-23 License: CC BY 4.0 with a link back CVE-2023-33202 · Severity: low · CVSS 3.1 · Published 2023-11-23 Bouncy Castle Denial of Service (DoS) Technologies: [org.bouncycastle:bcpkix-jdk18on (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcpkix-jdk18on), [org.bouncycastle:bcprov-ext-jdk15on (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-ext-jdk15on), [org.bouncycastle:bcprov-ext-jdk16 (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-ext-jdk16), [org.bouncycastle:bcprov-jdk14 (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-jdk14), [org.bouncycastle:bcprov-jdk15 (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-jdk15), [org.bouncycastle:bcprov-jdk15on (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-jdk15on), [org.bouncycastle:bcprov-jdk15to18 (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-jdk15to18), [org.bouncycastle:bcprov-jdk16 (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-jdk16), [org.bouncycastle:bcprov-jdk18on (Maven)](https://junglewise.ai/threats/technologies/org-bouncycastle-bcprov-jdk18on). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven). ## Quick answers **Is CVE-2023-33202 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2023-33202 being exploited in the wild. **How severe is CVE-2023-33202?** Low severity, with a CVSS score of 3.1, published 23 November 2023. **Which products and versions are affected?** org.bouncycastle:bcpkix-jdk18on (Maven) ECOSYSTEM:introduced=0,fixed=1.73; org.bouncycastle:bcprov-ext-jdk15on (Maven) ECOSYSTEM:introduced=0,fixed=1.73; org.bouncycastle:bcprov-ext-jdk16 (Maven) ECOSYSTEM:introduced=0,fixed=1.73; org.bouncycastle:bcprov-jdk14 (Maven) ECOSYSTEM:introduced=0,fixed=1.73; and 5 more. **Is there a fix for CVE-2023-33202?** Yes. org.bouncycastle:bcpkix-jdk18on (Maven): upgrade to 1.73 or later; org.bouncycastle:bcprov-ext-jdk15on (Maven): upgrade to 1.73 or later; org.bouncycastle:bcprov-ext-jdk16 (Maven): upgrade to 1.73 or later; org.bouncycastle:bcprov-jdk14 (Maven): upgrade to 1.73 or later; org.bouncycastle:bcprov-jdk15 (Maven): upgrade to 1.73 or later; org.bouncycastle:bcprov-jdk15to18 (Maven): upgrade to 1.73 or later; org.bouncycastle:bcprov-jdk16 (Maven): upgrade to 1.73 or later; org.bouncycastle:bcprov-jdk18on (Maven): upgrade to 1.73 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve. **Am I affected by CVE-2023-33202?** Check whether you run org.bouncycastle:bcpkix-jdk18on (Maven), org.bouncycastle:bcprov-ext-jdk15on (Maven), org.bouncycastle:bcprov-ext-jdk16 (Maven) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you. ## How to fix - org.bouncycastle:bcpkix-jdk18on (Maven): upgrade to 1.73 or later ```sh # set org.bouncycastle:bcpkix-jdk18on to 1.73 in your pom.xml or build.gradle ``` - org.bouncycastle:bcprov-ext-jdk15on (Maven): upgrade to 1.73 or later ```sh # set org.bouncycastle:bcprov-ext-jdk15on to 1.73 in your pom.xml or build.gradle ``` - org.bouncycastle:bcprov-ext-jdk16 (Maven): upgrade to 1.73 or later ```sh # set org.bouncycastle:bcprov-ext-jdk16 to 1.73 in your pom.xml or build.gradle ``` - org.bouncycastle:bcprov-jdk14 (Maven): upgrade to 1.73 or later ```sh # set org.bouncycastle:bcprov-jdk14 to 1.73 in your pom.xml or build.gradle ``` - org.bouncycastle:bcprov-jdk15 (Maven): upgrade to 1.73 or later ```sh # set org.bouncycastle:bcprov-jdk15 to 1.73 in your pom.xml or build.gradle ``` - org.bouncycastle:bcprov-jdk15to18 (Maven): upgrade to 1.73 or later ```sh # set org.bouncycastle:bcprov-jdk15to18 to 1.73 in your pom.xml or build.gradle ``` - org.bouncycastle:bcprov-jdk16 (Maven): upgrade to 1.73 or later ```sh # set org.bouncycastle:bcprov-jdk16 to 1.73 in your pom.xml or build.gradle ``` - org.bouncycastle:bcprov-jdk18on (Maven): upgrade to 1.73 or later ```sh # set org.bouncycastle:bcprov-jdk18on to 1.73 in your pom.xml or build.gradle ``` ## Affected products - org.bouncycastle:bcpkix-jdk18on (Maven) ECOSYSTEM:introduced=0,fixed=1.73 - org.bouncycastle:bcprov-ext-jdk15on (Maven) ECOSYSTEM:introduced=0,fixed=1.73 - org.bouncycastle:bcprov-ext-jdk16 (Maven) ECOSYSTEM:introduced=0,fixed=1.73 - org.bouncycastle:bcprov-jdk14 (Maven) ECOSYSTEM:introduced=0,fixed=1.73 - org.bouncycastle:bcprov-jdk15 (Maven) ECOSYSTEM:introduced=0,fixed=1.73 - org.bouncycastle:bcprov-jdk15on (Maven) ECOSYSTEM:introduced=0 - org.bouncycastle:bcprov-jdk15to18 (Maven) ECOSYSTEM:introduced=0,fixed=1.73 - org.bouncycastle:bcprov-jdk16 (Maven) ECOSYSTEM:introduced=0,fixed=1.73 - org.bouncycastle:bcprov-jdk18on (Maven) ECOSYSTEM:introduced=0,fixed=1.73 ## Identifiers - CVE-2023-33202 - GHSA-wjxj-5m7g-mg7q ## Related threats - [Bouncy Castle ASN.1 sequence nesting-depth guard bypass](https://junglewise.ai/threats/cve-2026-13506-bouncy-castle-asn-1-sequence-nesting-depth-guard-bypass) - [Bouncy Castle Name Constraints bypass via trailing dot in rfc822Name and URI](https://junglewise.ai/threats/cve-2026-8763-bouncy-castle-name-constraints-bypass-via-trailing-dot-in) - [Bouncy Castle BC-JAVA timing channel in FrodoKEM](https://junglewise.ai/threats/cve-2026-5598-bouncy-castle-bc-java-timing-channel-in-frodokem) - [Bouncy Castle BC-JAVA signature bypass in CompositeVerifier](https://junglewise.ai/threats/cve-2026-5588-bouncy-castle-bc-java-signature-bypass-in-compositeverifier) - [Bouncy Castle BC-JAVA LDAP injection in LDAPStoreHelper](https://junglewise.ai/threats/cve-2026-0636-bouncy-castle-bc-java-ldap-injection-in-ldapstorehelper)