{"cve":"CVE-2023-33202","nvd":{"published":"2023-11-23T16:15:07.273","modified":"2026-06-17T06:01:18.017","status":"Modified","description":"Bouncy Castle for Java before 1.73 contains a potential Denial of Service (DoS) issue within the Bouncy Castle org.bouncycastle.openssl.PEMParser class. This class parses OpenSSL PEM encoded streams containing X.509 certificates, PKCS8 encoded keys, and PKCS7 objects. Parsing a file that has crafted ASN.1 data through the PEMParser causes an OutOfMemoryError, which can enable a denial of service attack. (For users of the FIPS Java API: BC-FJA 1.0.2.3 and earlier are affected; BC-FJA 1.0.2.4 is fixed.)","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-400"],"references":["https://bouncycastle.org","https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902023%E2%80%9033202","https://github.com/bcgit/bc-java/wiki/CVE-2023-33202","https://security.netapp.com/advisory/ntap-20240125-0001/","https://bouncycastle.org"],"products":["bouncycastle:bouncy_castle_for_java","bouncycastle:fips_java_api"],"source":"nvd","synced_at":"2026-10-19T21:42:07.670898610+00:00"},"epss":{"cve":"CVE-2023-33202","score":0.00998,"percentile":0.62765,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wjxj-5m7g-mg7q","url":"https://osv.dev/vulnerability/GHSA-wjxj-5m7g-mg7q","summary":"Bouncy Castle Denial of Service (DoS)","modified":"2026-09-10T03:50:04.576771099Z","packages":[{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-ext-jdk16","purl":"pkg:maven/org.bouncycastle/bcprov-ext-jdk16","ranges":["<1.73"],"fixed":["1.73"]},{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk14","purl":"pkg:maven/org.bouncycastle/bcprov-jdk14","ranges":["<1.73"],"fixed":["1.73"]},{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk15","purl":"pkg:maven/org.bouncycastle/bcprov-jdk15","ranges":["<1.73"],"fixed":["1.73"]},{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk15to18","purl":"pkg:maven/org.bouncycastle/bcprov-jdk15to18","ranges":["<1.73"],"fixed":["1.73"]},{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk16","purl":"pkg:maven/org.bouncycastle/bcprov-jdk16","ranges":["<1.73"],"fixed":["1.73"]},{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk15on","purl":"pkg:maven/org.bouncycastle/bcprov-jdk15on","ranges":["all versions"],"fixed":[]},{"ecosystem":"Maven","name":"org.bouncycastle:bcpkix-jdk18on","purl":"pkg:maven/org.bouncycastle/bcpkix-jdk18on","ranges":["<1.73"],"fixed":["1.73"]},{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-ext-jdk15on","purl":"pkg:maven/org.bouncycastle/bcprov-ext-jdk15on","ranges":["<1.73"],"fixed":["1.73"]},{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk18on","purl":"pkg:maven/org.bouncycastle/bcprov-jdk18on","ranges":["<1.73"],"fixed":["1.73"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}