{"cve":"CVE-2009-0777","nvd":{"published":"2009-03-05T02:30:00.500","modified":"2026-06-16T23:05:47.543","status":"Modified","description":"Mozilla Firefox before 3.0.7, Thunderbird before 2.0.0.21, and SeaMonkey before 1.1.15 decode invisible characters when they are displayed in the location bar, which causes an incorrect address to be displayed and makes it easier for remote attackers to spoof URLs and conduct phishing attacks.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00002.html","http://secunia.com/advisories/34140","http://secunia.com/advisories/34145","http://secunia.com/advisories/34272","http://securitytracker.com/alerts/2009/Mar/1021799.html"],"products":["mozilla:firefox","mozilla:seamonkey","mozilla:thunderbird"],"source":"nvd","synced_at":"2026-10-19T19:53:23.791937413+00:00"},"epss":{"cve":"CVE-2009-0777","score":0.01497,"percentile":0.74223,"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."]}