CVE-2019-8657

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS 12.4, watchOS 5.3. Parsing a maliciously crafted office document may lead to an unexpected application termination or arbitrary code execution.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.65%
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple iOS
Affected: Apple macOS
Affected: Apple tvOS
Affected: Apple watchOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/HT210353 vendor advisory
https://support.apple.com/HT210346 vendor advisory
https://support.apple.com/HT210348 vendor advisory
https://support.apple.com/HT210351 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-8657?
CVE-2019-8657 has been scored as a high severity vulnerability.
How to fix CVE-2019-8657?
To fix CVE-2019-8657, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-8657 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-8657 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-8657?
CVE-2019-8657 affects Apple iOS, Apple macOS, Apple tvOS, Apple watchOS.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.