{"id":"CVE-2017-13098","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-13098","generatedAt":"2026-10-28T21:19:34.550Z","title":"BouncyCastle TLS prior to version 1.0.3, when configured to use the JCE (Java Cryptography Extension) for cryptographic functions, provides a weak Bleichenbacher oracle when any TLS cipher suite using RSA key exchange is negotiated.","description":"BouncyCastle TLS prior to version 1.0.3, when configured to use the JCE (Java Cryptography Extension) for cryptographic functions, provides a weak Bleichenbacher oracle when any TLS cipher suite using RSA key exchange is negotiated. An attacker can recover the private key from a vulnerable application. This vulnerability is referred to as \"ROBOT.\"","published":"2017-12-13T01:29:00.000Z","lastModified":"2026-06-17T01:04:32.000Z","status":"Modified","sourceIdentifier":"cret@cert.org","cvss":{"version":"3.0","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-203"],"affected":["bouncycastle/bc-java"],"epss":{"score":0.24282,"percentile":0.97851,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 24.3%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00011.html","source":"cret@cert.org"},{"url":"http://www.kb.cert.org/vuls/id/144389","tags":["Issue Tracking","Mitigation","Third Party Advisory","US Government Resource"],"source":"cret@cert.org"},{"url":"http://www.securityfocus.com/bid/102195","tags":["Third Party Advisory","VDB Entry"],"source":"cret@cert.org"},{"url":"https://github.com/bcgit/bc-java/commit/a00b684465b38d722ca9a3543b8af8568e6bad5c","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"cret@cert.org"},{"url":"https://robotattack.org/","tags":["Issue Tracking","Third Party Advisory"],"source":"cret@cert.org"},{"url":"https://security.netapp.com/advisory/ntap-20171222-0001/","tags":["Issue Tracking","Third Party Advisory"],"source":"cret@cert.org"},{"url":"https://www.debian.org/security/2017/dsa-4072","tags":["Issue Tracking","Third Party Advisory"],"source":"cret@cert.org"},{"url":"https://www.oracle.com/security-alerts/cpuoct2020.html","source":"cret@cert.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00011.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.kb.cert.org/vuls/id/144389","tags":["Issue Tracking","Mitigation","Third Party Advisory","US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/102195","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/bcgit/bc-java/commit/a00b684465b38d722ca9a3543b8af8568e6bad5c","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://robotattack.org/","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20171222-0001/","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2017/dsa-4072","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuoct2020.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-13098","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}