What is the CVSS score of CVE-2019-8506?

CVE-2019-8506 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 18.1%.

Is there a public PoC exploit available for CVE-2019-8506?

Yes, a public proof-of-concept exploit is available for CVE-2019-8506. Prioritise patching immediately. EPSS: 18.1%.

Icloud CVE-2019-8506

HIGH

Access of Resource Using Incompatible Type (Type Confusion) (CWE-843)

2019-12-18 product-security@apple.com

Microsoft Apple RCE Memory Corruption Icloud Itunes Safari Iphone Os Tvos Watchos Enterprise Linux Desktop Enterprise Linux Server Enterprise Linux Workstation

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Added to CISA KEV

Jul 14, 2026 - 04:22 CISA

CVE Published

Dec 18, 2019 - 18:15 nvd

HIGH 8.8

DescriptionNVD

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.

AnalysisAI

A type confusion issue was addressed with improved memory handling. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Access of Resource Using Incompatible Type (Type Confusion) (CWE-843), which allows attackers to execute arbitrary code by exploiting type confusion in the application. 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. Affected products include: Apple Icloud, Apple Itunes, Apple Safari, Apple Iphone Os, Apple Tvos.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Enforce strict type checking, use type-safe languages, validate object types before operations.