{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/63003?format=json","vulnerability_id":"VCID-prve-an93-pkd8","summary":"Memory safety bugs present in Firefox 134 and Thunderbird 134. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.","aliases":[{"alias":"CVE-2025-1020"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/583846?format=json","purl":"pkg:deb/debian/firefox@135.0-1?distro=sid","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@135.0-1%3Fdistro=sid"},{"url":"http://public2.vulnerablecode.io/api/packages/582059?format=json","purl":"pkg:deb/debian/firefox@149.0-1?distro=sid","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@149.0-1%3Fdistro=sid"},{"url":"http://public2.vulnerablecode.io/api/packages/1059611?format=json","purl":"pkg:deb/debian/firefox@149.0.2-1?distro=sid","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@149.0.2-1%3Fdistro=sid"},{"url":"http://public2.vulnerablecode.io/api/packages/1076056?format=json","purl":"pkg:deb/debian/firefox@150.0-1?distro=sid","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@150.0-1%3Fdistro=sid"},{"url":"http://public2.vulnerablecode.io/api/packages/1088670?format=json","purl":"pkg:deb/debian/firefox@150.0.1-1?distro=sid","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@150.0.1-1%3Fdistro=sid"},{"url":"http://public2.vulnerablecode.io/api/packages/1105248?format=json","purl":"pkg:deb/debian/firefox@150.0.2-1?distro=sid","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@150.0.2-1%3Fdistro=sid"},{"url":"http://public2.vulnerablecode.io/api/packages/1112518?format=json","purl":"pkg:deb/debian/firefox@150.0.3-1?distro=sid","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@150.0.3-1%3Fdistro=sid"}],"affected_packages":[],"references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-1020.json","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-1020.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2025-1020","reference_id":"","reference_type":"","scores":[{"value":"0.00536","scoring_system":"epss","scoring_elements":"0.67462","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00536","scoring_system":"epss","scoring_elements":"0.67442","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00536","scoring_system":"epss","scoring_elements":"0.67441","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69318","published_at":"2026-05-15T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69138","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.6916","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69144","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69115","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69154","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69163","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69189","published_at":"2026-05-05T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69232","published_at":"2026-05-07T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69266","published_at":"2026-05-09T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69233","published_at":"2026-05-11T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69258","published_at":"2026-05-12T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69307","published_at":"2026-05-14T12:55:00Z"},{"value":"0.00588","scoring_system":"epss","scoring_elements":"0.69119","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00604","scoring_system":"epss","scoring_elements":"0.69674","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00604","scoring_system":"epss","scoring_elements":"0.69669","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00604","scoring_system":"epss","scoring_elements":"0.69661","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00604","scoring_system":"epss","scoring_elements":"0.69608","published_at":"2026-04-21T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2025-1020"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2343757","reference_id":"2343757","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2343757"},{"reference_url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1939063%2C1942169","reference_id":"buglist.cgi?bug_id=1939063%2C1942169","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-02-06T21:06:28Z/"}],"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1939063%2C1942169"},{"reference_url":"https://www.mozilla.org/en-US/security/advisories/mfsa2025-07","reference_id":"mfsa2025-07","reference_type":"","scores":[{"value":"high","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2025-07"},{"reference_url":"https://www.mozilla.org/security/advisories/mfsa2025-07/","reference_id":"mfsa2025-07","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-02-06T21:06:28Z/"}],"url":"https://www.mozilla.org/security/advisories/mfsa2025-07/"},{"reference_url":"https://www.mozilla.org/en-US/security/advisories/mfsa2025-11","reference_id":"mfsa2025-11","reference_type":"","scores":[{"value":"high","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2025-11"},{"reference_url":"https://www.mozilla.org/security/advisories/mfsa2025-11/","reference_id":"mfsa2025-11","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-02-06T21:06:28Z/"}],"url":"https://www.mozilla.org/security/advisories/mfsa2025-11/"},{"reference_url":"https://usn.ubuntu.com/7263-1/","reference_id":"USN-7263-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/7263-1/"},{"reference_url":"https://usn.ubuntu.com/7991-1/","reference_id":"USN-7991-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/7991-1/"}],"weaknesses":[{"cwe_id":120,"name":"Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","description":"The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow."}],"exploits":[],"severity_range_score":"7.0 - 9.8","exploitability":null,"weighted_severity":null,"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-prve-an93-pkd8"}