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CVE-2019-8506

HighPublished

Apple Multiple Products Type Confusion Vulnerability

Published: Dec 18, 2019
Updated: Oct 21, 2025
Assigning CNA: apple
Evidence observed: Apr 3, 2019

Primary CVSS

8.8/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

18.1%

Moderate · next 30 days

Percentile: 97.1%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.

Sources

WebKit JavaScriptCore - 'createRegExpMatchesArray' Type ConfusionExploit
Google Security Research · multiple · Apr 3, 2019

Responsible use

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