CVE-2019-8666

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS 12.4, Safari 12.1.2, iTunes for Windows 12.9.6, iCloud for Windows 7.13, iCloud for Windows 10.6. Processing maliciously crafted web content may lead to arbitrary code execution.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Dec 18, 2019
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2019

CVE-2019-86675.3An inconsistent user interface issue was addressed with improved state management. This issue is fixed in macOS Mojave 10.14.6. The encryptiCVE-2019-86685.5A denial of service issue was addressed with improved validation. This issue is fixed in iOS 12.4, tvOS 12.4, watchOS 5.3. Processing a maliCVE-2019-86698.8Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS CVE-2019-86704.3An inconsistent user interface issue was addressed with improved state management. This issue is fixed in macOS Mojave 10.14.6, Safari 12.1.CVE-2019-86718.8Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS CVE-2019-86728.8Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS CVE-2019-86738.8Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS CVE-2019-86746.1A logic issue was addressed with improved state management. This issue is fixed in iOS 13, Safari 13. Processing maliciously crafted web conCVE-2019-86758.8A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Mojave 10.14.6, Security Update 2019-004 HCVE-2019-86768.8Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS CVE-2019-86778.8Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS CVE-2019-86788.8Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS
CVE-2019-8666: High severity, CVSS 8.8 | Vulnix