{"id":"CVE-2002-1563","url":"https://www.cyber-defence.io/tools/cve/CVE-2002-1563","generatedAt":"2026-10-27T20:51:24.475Z","title":"stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.","description":"stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.","published":"2003-05-12T04:00:00.000Z","lastModified":"2026-06-16T21:59:34.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":1.2,"severity":"LOW","vector":"AV:L/AC:H/Au:N/C:N/I:N/A:P"},"cwe":[],"affected":["stunnel/stunnel"],"epss":{"score":0.00337,"percentile":0.26931,"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":"low","text":"Lower severity and a low EPSS score (0.34%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000736","source":"cve@mitre.org"},{"url":"http://marc.info/?l=bugtraq&m=104247606910598","source":"cve@mitre.org"},{"url":"http://marc.info/?l=bugtraq&m=106029168514511&w=2","source":"cve@mitre.org"},{"url":"http://marc.info/?l=stunnel-users&m=103600188215117&w=2","source":"cve@mitre.org"},{"url":"http://www.linuxsecurity.com/advisories/engarde_advisory-3535.html","source":"cve@mitre.org"},{"url":"http://www.redhat.com/support/errata/RHSA-2003-221.html","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.redhat.com/support/errata/RHSA-2003-223.html","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/6592","source":"cve@mitre.org"},{"url":"http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000736","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=104247606910598","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=106029168514511&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=stunnel-users&m=103600188215117&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.linuxsecurity.com/advisories/engarde_advisory-3535.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2003-221.html","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2003-223.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/6592","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2002-1563","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."}