{"id":"CVE-2019-9689","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-9689","generatedAt":"2026-10-27T22:23:26.194Z","title":"process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow via a crafted TLS certificate handshake message with zero certificates.","description":"process_certificate in tls1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow via a crafted TLS certificate handshake message with zero certificates.","published":"2019-12-03T20:15:12.000Z","lastModified":"2026-06-17T02:44:11.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-120"],"affected":["axtls project/axtls"],"epss":{"score":0.01479,"percentile":0.73715,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://axtls.sourceforge.net","tags":["Product"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/155500/axTLS-2.1.5-Denial-Of-Service.html","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://seclists.org/bugtraq/2019/Nov/44","source":"cve@mitre.org"},{"url":"https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842","source":"cve@mitre.org"},{"url":"https://www.telekom.com/resource/blob/586428/51ae062269fbcb068bd20379f87f1398/dl-191121-critical-remote-denial-of-service-vulnerability-ii--data.pdf","source":"cve@mitre.org"},{"url":"http://axtls.sourceforge.net","tags":["Product"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/155500/axTLS-2.1.5-Denial-Of-Service.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Nov/44","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.telekom.com/resource/blob/586428/51ae062269fbcb068bd20379f87f1398/dl-191121-critical-remote-denial-of-service-vulnerability-ii--data.pdf","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-9689","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."}