{"cve":"CVE-2012-2733","nvd":{"published":"2012-11-16T21:55:01.353","modified":"2026-06-16T23:41:59.993","status":"Modified","description":"java/org/apache/coyote/http11/InternalNioInputBuffer.java in the HTTP NIO connector in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.28 does not properly restrict the request-header size, which allows remote attackers to cause a denial of service (memory consumption) via a large amount of header data.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://lists.opensuse.org/opensuse-updates/2012-12/msg00089.html","http://lists.opensuse.org/opensuse-updates/2012-12/msg00090.html","http://lists.opensuse.org/opensuse-updates/2013-01/msg00037.html","http://marc.info/?l=bugtraq&m=136612293908376&w=2","http://marc.info/?l=bugtraq&m=139344343412337&w=2"],"products":["apache:tomcat"],"source":"nvd","synced_at":"2026-10-19T20:25:53.526315492+00:00"},"epss":{"cve":"CVE-2012-2733","score":0.08742,"percentile":0.95154,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}