{"cve":{"cve_id":"CVE-2019-11708","is_kev":true,"kev_date_added":"2022-05-23","kev_vendor_project":"Mozilla","kev_product":"Firefox and Thunderbird","kev_vulnerability_name":"Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability","kev_short_description":"Mozilla Firefox and Thunderbird contain a sandbox escape vulnerability that could result in remote code execution.","kev_required_action":"Apply updates per vendor instructions.","kev_due_date":"2022-06-13","kev_known_ransomware":false,"kev_notes":"https://nvd.nist.gov/vuln/detail/CVE-2019-11708","kev_cwes":["CWE-20"],"epss_score":0.55874,"epss_percentile":0.98915,"epss_as_of":"2026-06-23","description":"Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxed parent process opening web content chosen by a compromised child process. When combined with additional vulnerabilities this could result in executing arbitrary code on the user's computer. This vulnerability affects Firefox ESR < 60.7.2, Firefox < 67.0.4, and Thunderbird < 60.7.2.","published_at":"2019-07-23T13:20:03Z","last_modified_at":null,"cvss_v3_score":10.0,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"active","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":["CWE-20"],"nvd_references":["https://www.mozilla.org/security/advisories/mfsa2019-19/","https://www.mozilla.org/security/advisories/mfsa2019-20/","https://bugzilla.mozilla.org/show_bug.cgi?id=1559858","https://security.gentoo.org/glsa/201908-12","http://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain-Exploit.html"],"vuln_status":null,"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":"2026-06-24T00:09:31.350578Z","updated_at":"2026-06-28T23:11:58.803949Z"},"effective_severity":"CRITICAL","badges":["kev","epss"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"C","value_label":"Changed"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"mozilla","vendor_name":"Mozilla","product_slug":"firefox","product_name":"Firefox","version_start":"unspecified","version_start_inclusive":true,"version_end":"67.0.4","version_end_inclusive":false,"cpe23_uri":"cve5:mozilla:firefox:unspecified:67.0.4"},{"vendor_slug":"mozilla","vendor_name":"Mozilla","product_slug":"firefox-esr","product_name":"Firefox ESR","version_start":"unspecified","version_start_inclusive":true,"version_end":"60.7.2","version_end_inclusive":false,"cpe23_uri":"cve5:mozilla:firefox-esr:unspecified:60.7.2"},{"vendor_slug":"mozilla","vendor_name":"Mozilla","product_slug":"thunderbird","product_name":"Thunderbird","version_start":"unspecified","version_start_inclusive":true,"version_end":"60.7.2","version_end_inclusive":false,"cpe23_uri":"cve5:mozilla:thunderbird:unspecified:60.7.2"}],"exploit_refs":[],"news":[],"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2019-19/","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2019-20/","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1559858","source_type":"MISC","tags":[]},{"url":"https://security.gentoo.org/glsa/201908-12","source_type":"MISC","tags":[]},{"url":"http://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain-Exploit.html","source_type":"EXPLOIT","tags":["exploit"]}],"timeline":[{"type":"published","at":"2019-07-23T13:20:03Z","label":"CVE published","source":null},{"type":"cisa_reported","at":"2022-05-23T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"ssvc_changed","at":"2026-06-24T00:31:17.516004Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:17.516004Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:17.516004Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:17.516004Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:17.516004Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:17.516004Z","label":"CVSS score revised","source":"vulnrichment"}]}