{"cve":"CVE-2009-2299","nvd":{"published":"2009-07-02T10:30:00.407","modified":"2026-06-16T23:09:10.047","status":"Modified","description":"The Artofdefence Hyperguard Web Application Firewall (WAF) module before 2.5.5-11635, 3.0 before 3.0.3-11636, and 3.1 before 3.1.1-11637, a module for the Apache HTTP Server, allows remote attackers to cause a denial of service (memory consumption) via an HTTP request with a large Content-Length value but no POST data.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://secunia.com/advisories/35645","http://www.h4ck1nb3rg.at/wafs/advisory_artofdefence_hyperguard_200907.txt","http://www.securityfocus.com/archive/1/504680/100/0/threaded","http://secunia.com/advisories/35645","http://www.h4ck1nb3rg.at/wafs/advisory_artofdefence_hyperguard_200907.txt"],"products":["hyperguard_web_application_firewall_project:hyperguard_web_application_firewall"],"source":"nvd","synced_at":"2026-10-19T19:54:07.895733559+00:00"},"epss":{"cve":"CVE-2009-2299","score":0.04255,"percentile":0.91061,"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."]}