CVE-2023-43000High· 8.8▾ Abyssal⚠ Exploited in the wildPoC availableA 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 …
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 48.4 · likelihood 0.8 · exploitation 25
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 21.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Federal remediation due Mar 26, 2026
Last analysed / modified upstream
3.9%
Added to the CISA catalog on Mar 5, 2026. Federal remediation due Mar 26, 2026. View catalog ↗
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.
safari < 16.6ipados < 15.8.7ipados >= 16.0, < 16.6iphone_os < 15.8.7iphone_os >= 16.0, < 16.6macos < 13.5Upgrade past the affected range:
safari 16.6ipados 16.6iphone_os 16.6macos 13.5Connected by shared product, vendor, weakness, or advisory.
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