{"id":"CVE-2012-4436","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-4436","generatedAt":"2026-10-27T21:03:43.775Z","title":"Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments.","description":"Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments.","published":"2012-10-22T23:55:07.000Z","lastModified":"2026-06-16T23:45:06.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":4.4,"severity":"MEDIUM","vector":"AV:L/AC:M/Au:N/C:P/I:P/A:P"},"cwe":["CWE-119"],"affected":["cipherdyne/fwknop"],"epss":{"score":0.00656,"percentile":0.5112,"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 (0.66%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2012/09/19/2","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2012/09/20/4","source":"secalert@redhat.com"},{"url":"http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2012/09/19/2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2012/09/20/4","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-4436","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."}