{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20639","assignerOrgId":"286789f9-fbc2-4510-9f9a-43facdede74c","state":"PUBLISHED","assignerShortName":"apple","dateReserved":"2025-11-11T14:43:07.861Z","datePublished":"2026-03-25T00:32:30.351Z","dateUpdated":"2026-04-02T18:20:46.356Z"},"containers":{"cna":{"problemTypes":[{"descriptions":[{"lang":"en","description":"Processing a maliciously crafted string may lead to heap corruption"}]}],"affected":[{"vendor":"Apple","product":"macOS","versions":[{"version":"0","status":"affected","lessThan":"14.8.5","versionType":"custom"},{"version":"0","status":"affected","lessThan":"15.7.5","versionType":"custom"},{"version":"0","status":"affected","lessThan":"26.3","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"An integer overflow was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3. Processing a maliciously crafted string may lead to heap corruption."}],"references":[{"url":"https://support.apple.com/en-us/126348"},{"url":"https://support.apple.com/en-us/126795"},{"url":"https://support.apple.com/en-us/126796"}],"providerMetadata":{"orgId":"286789f9-fbc2-4510-9f9a-43facdede74c","shortName":"apple","dateUpdated":"2026-04-02T18:20:46.356Z"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-190","lang":"en","description":"CWE-190 Integer Overflow or Wraparound"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-03-25T19:45:29.801131Z","id":"CVE-2026-20639","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-25T19:46:03.898Z"}}]}}