{"cve":"CVE-2009-4420","nvd":{"published":"2009-12-24T17:30:00.280","modified":"2026-06-16T23:13:38.100","status":"Modified","description":"Buffer overflow in the bd daemon in F5 Networks BIG-IP Application Security Manager (ASM) 9.4.4 through 9.4.7 and 10.0.0 through 10.0.1, and Protocol Security Manager (PSM) 9.4.5 through 9.4.7 and 10.0.0 through 10.0.1, allows remote attackers to cause a denial of service (crash) via unknown vectors.  NOTE: some of these details are obtained from third party information.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://osvdb.org/61297","http://secunia.com/advisories/37805","http://www.securityfocus.com/bid/37452","http://www.securitytracker.com/id?1023386","http://www.vupen.com/english/advisories/2009/3627"],"products":["f5:big-ip_application_security_manager","f5:big-ip_protocol_security_manager","f5:big-ip_protocol_security_module"],"source":"nvd","synced_at":"2026-10-19T19:55:32.599380760+00:00"},"epss":{"cve":"CVE-2009-4420","score":0.02221,"percentile":0.82681,"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."]}