CVE-2023-32435
Apple Multiple Products WebKit Memory Corruption Vulnerability
Apple Multiple Products
A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Ventura 13.3, Safari 16.4, iOS 16.4 and iPadOS 16.4, iOS 15.7.7 and iPadOS 15.7.7. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.7.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 23 June 2023. US federal agencies were required to remediate it by 14 July 2023.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 23%, which is higher than 97.8% 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:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2023-32435 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2023-32435.
What does CVE-2023-32435 affect?
CVE-2023-32435 affects Apple Multiple Products. A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Ventura 13.3, Safari 16.4, iOS 16.4 and iPadOS 16.4, iOS 15.7.7 and iPadOS 15.7.7. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.7.
How severe is CVE-2023-32435?
CVE-2023-32435 is rated HIGH with a CVSS base score of 8.8. EPSS puts the probability of exploitation in the next 30 days at 23%, higher than 97.8% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 14 July 2023.
How should organisations respond to CVE-2023-32435?
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.