CVE-2023-43000: Apple Multiple products Use-After-Free Vulnerability

High severity, CVSS 8.8. Actively exploited: in CISA KEV since 2026-03-05. EPSS: 4% chance of exploitation in the next 30 days.

A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.

Affected products

• Apple iPadOS: before 15.8.7 (fixed in 15.8.7); from 16.0, before 16.6 (fixed in 16.6)
• Apple iPhone OS: before 15.8.7 (fixed in 15.8.7); from 16.0, before 16.6 (fixed in 16.6)
• Apple macOS: before 13.5 (fixed in 13.5)
• Apple Safari: before 16.6 (fixed in 16.6)

Published 2025-11-05. Last modified 2026-09-21.