CVE-2020-3837
Apple Multiple Products Memory Corruption Vulnerability
Apple Multiple Products
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. An application may be able to execute arbitrary code with kernel privileges.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 27 June 2022. US federal agencies were required to remediate it by 18 July 2022.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 14.8%, which is higher than 96.7% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2020-3837 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2020-3837.
What does CVE-2020-3837 affect?
CVE-2020-3837 affects Apple Multiple Products. A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. An application may be able to execute arbitrary code with kernel privileges.
How severe is CVE-2020-3837?
CVE-2020-3837 is rated HIGH with a CVSS base score of 7.8. EPSS puts the probability of exploitation in the next 30 days at 14.8%, higher than 96.7% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 18 July 2022.
How should organisations respond to CVE-2020-3837?
Apply the vendor patch for Apple Multiple Products as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.