CVE-2018-4344
Apple Multiple Products Memory Corruption Vulnerability
Apple Multiple Products
A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.
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 2.4%, which is higher than 84.1% 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-2018-4344 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2018-4344.
What does CVE-2018-4344 affect?
CVE-2018-4344 affects Apple Multiple Products. A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.
How severe is CVE-2018-4344?
CVE-2018-4344 is rated HIGH with a CVSS base score of 7.8. EPSS puts the probability of exploitation in the next 30 days at 2.4%, higher than 84.1% 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-2018-4344?
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.