CVE-2019-8663

Name: CVE-2019-8663
Creator: NVD / NIST
Published: 2019-12-18T18:15:31.913+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 6.27%

Last modified Jun 17, 2026

CVE-2019-8663 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. This issue was addressed with improved checks. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6. EPSS estimates a 6.27% chance of exploitation in the next 30 days.

Description

This issue was addressed with improved checks. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6. A remote attacker may be able to leak memory.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

6.27%

92.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apple	Iphone Os	< 12.4
Apple	Mac Os X	< 10.14.6

References

https://support.apple.com/HT210346Vendor Advisory
https://support.apple.com/HT210348Vendor Advisory
https://support.apple.com/HT210346Vendor Advisory
https://support.apple.com/HT210348Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2019-8663?

This issue was addressed with improved checks. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6. A remote attacker may be able to leak memory.

How severe is CVE-2019-8663?

CVE-2019-8663 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 6.27% probability of exploitation in the next 30 days.

How do I fix CVE-2019-8663?

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-2019-8663?

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

Scan your code now

Source: NVD / NIST