{"cve":{"cve_id":"CVE-2006-4340","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.02145,"epss_percentile":0.79703,"epss_as_of":"2026-06-23","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.","published_at":"2006-09-15T18:00:00Z","last_modified_at":"2026-06-16T22:28:54.537000Z","cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-20"],"nvd_references":["http://www.matasano.com/log/469/many-rsa-signatures-may-be-forgeable-in-openssl-and-elsewhere/","http://securitytracker.com/id?1016858","http://secunia.com/advisories/22992","http://www.vupen.com/english/advisories/2006/3748","http://securitytracker.com/id?1016859","http://www.redhat.com/support/errata/RHSA-2006-0676.html","http://secunia.com/advisories/23883","http://www.vupen.com/english/advisories/2006/3899","http://secunia.com/advisories/22044","http://secunia.com/advisories/22055","http://secunia.com/advisories/22195","http://www.ubuntu.com/usn/usn-361-1","http://www.ubuntu.com/usn/usn-352-1","http://secunia.com/advisories/22446","http://secunia.com/advisories/21950","http://www.ubuntu.com/usn/usn-351-1","http://secunia.com/advisories/22025","http://secunia.com/advisories/22056","http://www.imc.org/ietf-openpgp/mail-archive/msg14307.html","http://www.us-cert.gov/cas/techalerts/TA06-312A.html","http://secunia.com/advisories/22247","http://www.mandriva.com/security/advisories?name=MDKSA-2006:168","http://www.us.debian.org/security/2006/dsa-1191","http://www.vupen.com/english/advisories/2007/0293","http://secunia.com/advisories/22210","http://www.debian.org/security/2006/dsa-1210","http://secunia.com/advisories/24711","http://www.vupen.com/english/advisories/2006/3622","http://www.mozilla.org/security/announce/2006/mfsa2006-60.html","http://support.avaya.com/elmodocs2/security/ASA-2006-224.htm","http://securitytracker.com/id?1016860","http://secunia.com/advisories/22849","http://www.vupen.com/english/advisories/2008/0083","ftp://patches.sgi.com/support/free/security/advisories/20060901-01-P.asc","http://secunia.com/advisories/21939","http://www.vupen.com/english/advisories/2006/3617","http://www.gentoo.org/security/en/glsa/glsa-200610-06.xml","http://secunia.com/advisories/21915","http://www.vupen.com/english/advisories/2007/1198","http://www.redhat.com/support/errata/RHSA-2006-0677.html","http://www.debian.org/security/2006/dsa-1192","http://support.avaya.com/elmodocs2/security/ASA-2006-250.htm","http://security.gentoo.org/glsa/glsa-200609-19.xml","http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=c00771742","http://secunia.com/advisories/22274","http://www.redhat.com/support/errata/RHSA-2006-0675.html","http://secunia.com/advisories/21940","https://exchange.xforce.ibmcloud.com/vulnerabilities/30098","http://sunsolve.sun.com/search/document.do?assetkey=1-26-102648-1","http://secunia.com/advisories/22001","http://www.securityfocus.com/archive/1/446140/100/0/threaded","http://secunia.com/advisories/21903","http://www.ubuntu.com/usn/usn-350-1","http://secunia.com/advisories/21906","http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=c00771742","http://secunia.com/advisories/22342","http://security.gentoo.org/glsa/glsa-200610-01.xml","http://secunia.com/advisories/22074","http://secunia.com/advisories/22226","http://secunia.com/advisories/22066","http://secunia.com/advisories/22088","http://secunia.com/advisories/21949","http://www.novell.com/linux/security/advisories/2006_54_mozilla.html","https://issues.rpath.com/browse/RPL-640","http://www.mozilla.org/security/announce/2006/mfsa2006-66.html","http://secunia.com/advisories/22036","http://www.novell.com/linux/security/advisories/2006_55_ssl.html","https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11007","http://www.ubuntu.com/usn/usn-354-1","http://sunsolve.sun.com/search/document.do?assetkey=1-26-102781-1","http://secunia.com/advisories/22422","http://secunia.com/advisories/22299","http://www.mandriva.com/security/advisories?name=MDKSA-2006:169","http://secunia.com/advisories/21916"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:03:32.654959Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"mozilla","vendor_name":"Mozilla","product_slug":"firefox","product_name":"Firefox","version_start":null,"version_start_inclusive":null,"version_end":"1.5.0.6","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*"},{"vendor_slug":"mozilla","vendor_name":"Mozilla","product_slug":"network-security-services","product_name":"Network 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