{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/51660?format=json","vulnerability_id":"VCID-2rn3-ydxb-5ugu","summary":"Multiple vulnerabilities have been found in Firefox, Thunderbird,\n    Network Security Services (NSS), and NetScape Portable Runtime (NSPR) with\n    the worst of which may allow remote execution of arbitrary code.","aliases":[{"alias":"CVE-2015-4477"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/79270?format=json","purl":"pkg:ebuild/dev-libs/nspr@4.12","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/dev-libs/nspr@4.12"},{"url":"http://public2.vulnerablecode.io/api/packages/79271?format=json","purl":"pkg:ebuild/dev-libs/nss@3.22.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/dev-libs/nss@3.22.2"},{"url":"http://public2.vulnerablecode.io/api/packages/79272?format=json","purl":"pkg:ebuild/dev-libs/nss@4.12","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/dev-libs/nss@4.12"},{"url":"http://public2.vulnerablecode.io/api/packages/79273?format=json","purl":"pkg:ebuild/mail-client/thunderbird@3.22.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/mail-client/thunderbird@3.22.2"},{"url":"http://public2.vulnerablecode.io/api/packages/79274?format=json","purl":"pkg:ebuild/mail-client/thunderbird@4.12","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/mail-client/thunderbird@4.12"},{"url":"http://public2.vulnerablecode.io/api/packages/79275?format=json","purl":"pkg:ebuild/mail-client/thunderbird@38.7.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/mail-client/thunderbird@38.7.0"},{"url":"http://public2.vulnerablecode.io/api/packages/79276?format=json","purl":"pkg:ebuild/mail-client/thunderbird-bin@3.22.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/mail-client/thunderbird-bin@3.22.2"},{"url":"http://public2.vulnerablecode.io/api/packages/79277?format=json","purl":"pkg:ebuild/mail-client/thunderbird-bin@4.12","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/mail-client/thunderbird-bin@4.12"},{"url":"http://public2.vulnerablecode.io/api/packages/79278?format=json","purl":"pkg:ebuild/mail-client/thunderbird-bin@38.7.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/mail-client/thunderbird-bin@38.7.0"},{"url":"http://public2.vulnerablecode.io/api/packages/79279?format=json","purl":"pkg:ebuild/www-client/firefox@3.22.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/www-client/firefox@3.22.2"},{"url":"http://public2.vulnerablecode.io/api/packages/79280?format=json","purl":"pkg:ebuild/www-client/firefox@4.12","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/www-client/firefox@4.12"},{"url":"http://public2.vulnerablecode.io/api/packages/79281?format=json","purl":"pkg:ebuild/www-client/firefox@38.7.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/www-client/firefox@38.7.0"},{"url":"http://public2.vulnerablecode.io/api/packages/79283?format=json","purl":"pkg:ebuild/www-client/firefox-bin@3.22.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/www-client/firefox-bin@3.22.2"},{"url":"http://public2.vulnerablecode.io/api/packages/79284?format=json","purl":"pkg:ebuild/www-client/firefox-bin@4.12","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/www-client/firefox-bin@4.12"},{"url":"http://public2.vulnerablecode.io/api/packages/79285?format=json","purl":"pkg:ebuild/www-client/firefox-bin@38.7.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:ebuild/www-client/firefox-bin@38.7.0"},{"url":"http://public2.vulnerablecode.io/api/packages/86809?format=json","purl":"pkg:mozilla/Firefox@40.0.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:mozilla/Firefox@40.0.0"},{"url":"http://public2.vulnerablecode.io/api/packages/86472?format=json","purl":"pkg:mozilla/Firefox%20ESR@38.7.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:mozilla/Firefox%2520ESR@38.7.0"},{"url":"http://public2.vulnerablecode.io/api/packages/86796?format=json","purl":"pkg:mozilla/Firefox%20OS@2.5.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:mozilla/Firefox%2520OS@2.5.0"},{"url":"http://public2.vulnerablecode.io/api/packages/86808?format=json","purl":"pkg:mozilla/SeaMonkey@2.38.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:mozilla/SeaMonkey@2.38.0"}],"affected_packages":[],"references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2015-4477.json","reference_id":"","reference_type":"","scores":[],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2015-4477.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2015-4477","reference_id":"","reference_type":"","scores":[{"value":"0.0291","scoring_system":"epss","scoring_elements":"0.86369","published_at":"2026-04-13T12:55:00Z"},{"value":"0.0291","scoring_system":"epss","scoring_elements":"0.86306","published_at":"2026-04-01T12:55:00Z"},{"value":"0.0291","scoring_system":"epss","scoring_elements":"0.86316","published_at":"2026-04-02T12:55:00Z"},{"value":"0.0291","scoring_system":"epss","scoring_elements":"0.86335","published_at":"2026-04-04T12:55:00Z"},{"value":"0.0291","scoring_system":"epss","scoring_elements":"0.86336","published_at":"2026-04-07T12:55:00Z"},{"value":"0.0291","scoring_system":"epss","scoring_elements":"0.86354","published_at":"2026-04-08T12:55:00Z"},{"value":"0.0291","scoring_system":"epss","scoring_elements":"0.86363","published_at":"2026-04-09T12:55:00Z"},{"value":"0.0291","scoring_system":"epss","scoring_elements":"0.86377","published_at":"2026-04-11T12:55:00Z"},{"value":"0.0291","scoring_system":"epss","scoring_elements":"0.86375","published_at":"2026-04-12T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2015-4477"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1252277","reference_id":"1252277","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1252277"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4477","reference_id":"CVE-2015-4477","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4477"},{"reference_url":"https://security.gentoo.org/glsa/201605-06","reference_id":"GLSA-201605-06","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/201605-06"},{"reference_url":"https://www.mozilla.org/en-US/security/advisories/mfsa2015-81","reference_id":"mfsa2015-81","reference_type":"","scores":[{"value":"critical","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2015-81"},{"reference_url":"https://usn.ubuntu.com/2702-1/","reference_id":"USN-2702-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/2702-1/"}],"weaknesses":[{"cwe_id":416,"name":"Use After Free","description":"Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code."}],"exploits":[],"severity_range_score":"9.0 - 10.0","exploitability":null,"weighted_severity":null,"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-2rn3-ydxb-5ugu"}