{"cve":{"cve_id":"CVE-2020-15999","is_kev":true,"kev_date_added":"2021-11-03","kev_vendor_project":"Google","kev_product":"Chrome FreeType","kev_vulnerability_name":"Google Chrome FreeType Heap Buffer Overflow Vulnerability","kev_short_description":"Google Chrome uses FreeType, an open-source software library to render fonts, which contains a heap buffer overflow vulnerability in the function Load_SBit_Png when processing PNG images embedded into fonts. This vulnerability is part of an exploit chain with CVE-2020-17087 on Windows and CVE-2020-16010 on Android.","kev_required_action":"Apply updates per vendor instructions.","kev_due_date":"2021-11-17","kev_known_ransomware":false,"kev_notes":"https://nvd.nist.gov/vuln/detail/CVE-2020-15999","kev_cwes":["CWE-787"],"epss_score":0.5063,"epss_percentile":0.98772,"epss_as_of":"2026-06-23","description":"Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.","published_at":"2020-11-03T00:00:00Z","last_modified_at":null,"cvss_v3_score":9.6,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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":"partial","cwes":["CWE-120"],"nvd_references":["https://crbug.com/1139963","https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.html","http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3QVIGAAJ4D62YEJAJJWMCCBCOQ6TVL7/","https://security.gentoo.org/glsa/202011-12","http://seclists.org/fulldisclosure/2020/Nov/33","https://security.gentoo.org/glsa/202012-04","https://www.debian.org/security/2021/dsa-4824","https://googleprojectzero.blogspot.com/p/rca-cve-2020-15999.html","https://security.gentoo.org/glsa/202401-19"],"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":"2026-06-28T23:13:37.389018Z"},"effective_severity":"CRITICAL","badges":["kev","epss"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack 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published","source":null},{"type":"cisa_reported","at":"2021-11-03T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"ssvc_changed","at":"2026-06-24T00:31:26.536244Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:26.536244Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:26.536244Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:26.536244Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:26.536244Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:26.536244Z","label":"CVSS score revised","source":"vulnrichment"}]}