CVE-2019-8506

Name: CVE-2019-8506
Creator: NVD / NIST
Published: 2019-12-18T18:15:22.88+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10Actively ExploitedEPSS 18.17%

Last modified Jun 17, 2026

CVE-2019-8506 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 18.17% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

18.17%

96.8th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 25, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apple	Icloud	< 7.11
Apple	Itunes	< 12.9.4
Apple	Safari	< 12.1
Apple	Iphone Os	< 12.2
Apple	Tvos	< 12.2
Apple	Watchos	< 5.2
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Workstation	7.0

References

https://support.apple.com/HT209599Release Notes, Vendor Advisory
https://support.apple.com/HT209601Release Notes, Vendor Advisory
https://support.apple.com/HT209602Release Notes, Vendor Advisory
https://support.apple.com/HT209603Release Notes, Vendor Advisory
https://support.apple.com/HT209604Release Notes, Vendor Advisory
https://support.apple.com/HT209605Release Notes, Vendor Advisory
https://support.apple.com/HT209599Release Notes, Vendor Advisory
https://support.apple.com/HT209601Release Notes, Vendor Advisory
https://support.apple.com/HT209602Release Notes, Vendor Advisory
https://support.apple.com/HT209603Release Notes, Vendor Advisory
https://support.apple.com/HT209604Release Notes, Vendor Advisory
https://support.apple.com/HT209605Release Notes, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8506US Government Resource

Timeline

Published: Dec 18, 2019
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2019-8506?

How severe is CVE-2019-8506?

CVE-2019-8506 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 18.17% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2019-8506?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-8506?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST