{"cve":"CVE-2006-4340","nvd":{"published":"2006-09-15T18:07:00.000","modified":"2026-06-16T22:28:54.537","status":"Modified","description":"Mozilla Network Security Service (NSS) library before 3.11.3, as used in Mozilla Firefox before 1.5.0.7, Thunderbird before 1.5.0.7, and SeaMonkey before 1.0.5, when using an RSA key with exponent 3, does not properly handle extra data in a signature, which allows remote attackers to forge signatures for SSL/TLS and email certificates, a similar vulnerability to CVE-2006-4339.  NOTE: on 20061107, Mozilla released an advisory stating that these versions were not completely patched by MFSA2006-60. The newer fixes for 1.5.0.7 are covered by CVE-2006-5462.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["ftp://patches.sgi.com/support/free/security/advisories/20060901-01-P.asc","http://secunia.com/advisories/21903","http://secunia.com/advisories/21906","http://secunia.com/advisories/21915","http://secunia.com/advisories/21916"],"products":["mozilla:firefox","mozilla:network_security_services","mozilla:seamonkey","mozilla:thunderbird"],"source":"nvd","synced_at":"2026-10-19T19:43:14.363260067+00:00"},"epss":{"cve":"CVE-2006-4340","score":0.02323,"percentile":0.83484,"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."]}