CVE-2020-9866

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{"affected": [{"affectedData": [{"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "10.15", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*", "matchCriteriaId": "FD0ACF42-C643-4DED-ADF7-4FA29B7578F7", "versionEndExcluding": "10.15.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. A buffer overflow may result in arbitrary code execution."}, {"lang": "es", "value": "Se abord\u00f3 un desbordamiento de b\u00fafer con una comprobaci\u00f3n de l\u00edmites mejorada.&#xa0;Este problema se corrigi\u00f3 en macOS Catalina versi\u00f3n 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra.&#xa0;Un desbordamiento del b\u00fafer puede resultar en una ejecuci\u00f3n de c\u00f3digo arbitraria"}], "id": "CVE-2020-9866", "lastModified": "2026-06-17T03:28:42.590", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-10-27T21:15:15.633", "references": [{"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/HT211289"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/HT211289"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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