{"id":"CVE-2012-3544","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-3544","generatedAt":"2026-11-05T07:28:46.808Z","title":"Apache Tomcat 6.x before 6.0.37 and 7.x before 7.0.30 does not properly handle chunk extensions in chunked transfer coding, which allows remote attackers to cause a denial of service by streaming data.","description":"Apache Tomcat 6.x before 6.0.37 and 7.x before 7.0.30 does not properly handle chunk extensions in chunked transfer coding, which allows remote attackers to cause a denial of service by streaming data.","published":"2013-06-01T14:21:06.000Z","lastModified":"2026-10-09T20:17:04.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":5,"severity":"MEDIUM","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P"},"cwe":["CWE-20"],"affected":["apache/tomcat"],"epss":{"score":0.11001,"percentile":0.95915,"date":"2026-11-04","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 11.0%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://archives.neohapsis.com/archives/bugtraq/2013-05/0042.html","source":"secalert@redhat.com"},{"url":"http://seclists.org/fulldisclosure/2014/Dec/23","source":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/coyote/http11/filters/ChunkedInputFilter.java?r1=1476592&r2=1476591&pathrev=1476592","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1378702","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1378921","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://svn.apache.org/viewvc?view=revision&revision=1476592","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://tomcat.apache.org/security-6.html","tags":["Vendor 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BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}