{"api_version":"1","generated_at":"2026-07-23T13:46:33+00:00","cve":"CVE-2026-20620","urls":{"html":"https://cve.report/CVE-2026-20620","api":"https://cve.report/api/cve/CVE-2026-20620.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-20620","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-20620"},"summary":{"title":"CVE-2026-20620","description":"An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An attacker may be able to cause unexpected system termination or read kernel memory.","state":"PUBLISHED","assigner":"apple","published_at":"2026-02-11 23:16:05","updated_at":"2026-04-02 19:21:11"},"problem_types":["CWE-125","An attacker may be able to cause unexpected system termination or read kernel memory","CWE-125 CWE-125 Out-of-bounds Read"],"metrics":[{"version":"3.1","source":"ADP","type":"DECLARED","score":"7.7","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","data":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}},{"version":"3.1","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","score":"7.7","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":7.7,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://support.apple.com/en-us/126350","name":"https://support.apple.com/en-us/126350","refsource":"product-security@apple.com","tags":["Release Notes","Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://support.apple.com/en-us/126349","name":"https://support.apple.com/en-us/126349","refsource":"product-security@apple.com","tags":["Release Notes","Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://support.apple.com/en-us/126348","name":"https://support.apple.com/en-us/126348","refsource":"product-security@apple.com","tags":["Release Notes","Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-20620","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20620","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Apple","product":"macOS","version":"affected 14.8.4 custom","platforms":[]},{"source":"CNA","vendor":"Apple","product":"macOS","version":"affected 15.7.4 custom","platforms":[]},{"source":"CNA","vendor":"Apple","product":"macOS","version":"affected 26.3 custom","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"20620","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"macos","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}},{"other":{"content":{"id":"CVE-2026-20620","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-02-13T20:14:12.406043Z","version":"2.0.3"},"type":"ssvc"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-02-13T20:15:40.527Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"macOS","vendor":"Apple","versions":[{"lessThan":"14.8.4","status":"affected","version":"0","versionType":"custom"},{"lessThan":"15.7.4","status":"affected","version":"0","versionType":"custom"},{"lessThan":"26.3","status":"affected","version":"0","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An attacker may be able to cause unexpected system termination or read kernel memory."}],"problemTypes":[{"descriptions":[{"description":"An attacker may be able to cause unexpected system termination or read kernel memory","lang":"en"}]}],"providerMetadata":{"dateUpdated":"2026-04-02T18:13:36.594Z","orgId":"286789f9-fbc2-4510-9f9a-43facdede74c","shortName":"apple"},"references":[{"url":"https://support.apple.com/en-us/126348"},{"url":"https://support.apple.com/en-us/126349"},{"url":"https://support.apple.com/en-us/126350"}]}},"cveMetadata":{"assignerOrgId":"286789f9-fbc2-4510-9f9a-43facdede74c","assignerShortName":"apple","cveId":"CVE-2026-20620","datePublished":"2026-02-11T22:58:16.266Z","dateReserved":"2025-11-11T14:43:07.859Z","dateUpdated":"2026-04-02T18:13:36.594Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-02-11 23:16:05","lastModifiedDate":"2026-04-02 19:21:11","problem_types":["CWE-125","An attacker may be able to cause unexpected system termination or read kernel memory","CWE-125 CWE-125 Out-of-bounds Read"],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":7.7,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.5,"impactScore":5.2}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0","versionEndExcluding":"14.8.4","matchCriteriaId":"E899D2A7-973C-4A46-B479-C245E5DFABE9"},{"vulnerable":true,"criteria":"cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*","versionStartIncluding":"15.0","versionEndExcluding":"15.7.4","matchCriteriaId":"A5F7A1AF-3DD7-4FA1-BF78-4855F83BB463"},{"vulnerable":true,"criteria":"cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*","versionStartIncluding":"26.0","versionEndExcluding":"26.3","matchCriteriaId":"0488A377-7971-4703-8823-05BF1E23CF48"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"20620","Ordinal":"1","Title":"CVE-2026-20620","CVE":"CVE-2026-20620","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"20620","Ordinal":"1","NoteData":"An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An attacker may be able to cause unexpected system termination or read kernel memory.","Type":"Description","Title":"CVE-2026-20620"}]}}}