CVE-2020-3840

Description

An off by one issue existed in the handling of racoon configuration files. This issue was addressed through improved bounds checking. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1. Loading a maliciously crafted racoon configuration file may lead to arbitrary code execution.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.47%
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple iOS
Affected: Apple macOS
Affected: Apple tvOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/HT210919 release notes vendor advisory
https://support.apple.com/HT210918 release notes vendor advisory
https://support.apple.com/HT210920 release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-3840?
CVE-2020-3840 has been scored as a high severity vulnerability.
How to fix CVE-2020-3840?
To fix CVE-2020-3840, 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-2020-3840 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-3840 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-3840?
CVE-2020-3840 affects Apple iOS, Apple macOS, Apple tvOS.
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.