CVE-2019-8547

Name: CVE-2019-8547
Creator: NVD / NIST
Published: 2020-10-27T20:15:15.143+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.27%

Last modified Jun 17, 2026

CVE-2019-8547 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. EPSS estimates a 2.27% chance of exploitation in the next 30 days.

Description

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra, watchOS 5.2, macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra, iOS 12.2. A remote attacker may be able to leak memory.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.27%

80.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Apple	Iphone Os	< 12.2
Apple	Mac Os X	>= 10.12.6, < 10.14.5
Apple	Watchos	< 5.2
Apple	Mac Os X	>= 10.14.3, < 10.14.4

References

https://support.apple.com/en-us/HT209599Vendor Advisory
https://support.apple.com/en-us/HT209600Vendor Advisory
https://support.apple.com/en-us/HT209602Vendor Advisory
https://support.apple.com/en-us/HT210119Vendor Advisory
https://support.apple.com/en-us/HT209599Vendor Advisory
https://support.apple.com/en-us/HT209600Vendor Advisory
https://support.apple.com/en-us/HT209602Vendor Advisory
https://support.apple.com/en-us/HT210119Vendor Advisory

Timeline

Published: Oct 27, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-8547?

How severe is CVE-2019-8547?

CVE-2019-8547 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.27% probability of exploitation in the next 30 days.

How do I fix CVE-2019-8547?

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-2019-8547?

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

Scan your code now

Source: NVD / NIST