CVE-2023-42866

HIGH

Safari < 16.6 - Remote Code Execution via Memory Corruption

Title source: llm
STIX 2.1

Description

The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, tvOS 16.6, Safari 16.6, watchOS 9.6. Processing web content may lead to arbitrary code execution.

References (5)

Core 5
Core References
Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213841
Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213843
Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213846
Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213847
Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213848

Scores

CVSS v3 8.8
EPSS 0.0048
EPSS Percentile 65.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

Status published
Products (6)
apple/ipados < 16.6
apple/iphone_os < 16.6
apple/macos < 13.5
apple/safari < 16.6
apple/tvos < 16.6
apple/watchos < 9.6
Published Jan 10, 2024
Tracked Since Feb 18, 2026