CVE-2023-23529

Exploited in the Wild ✓ Confirmed 0-Day ★ Google Project Zero
Triaged: March 3, 2026 29 articles
VulnLookup ↗ NVD ↗ MITRE ↗ Advisory ↗ P0 Sheet ↗ CISA KEV ↗

EPSS Score

Source: FIRST.org · 2026-05-24
0.09%
probability
This CVE has a 0.09% probability of being exploited in the next 30 days.
0% Top 25.8th percentile of all CVEs 100%

CVSS v3.1

Source: NVD
8.8
HIGH
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

NVD
A type confusion issue was addressed with improved checks. This issue is fixed in iOS 15.7.4 and iPadOS 15.7.4, iOS 16.3.1 and iPadOS 16.3.1, macOS Ventura 13.2.1, Safari 16.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Affected Products

apple
safari
apple
ipados
apple
iphone os
apple
macos

Attack Intelligence

Google Project Zero

Patched
Feb. 13, 2023
Reported by
???
Root Cause Analysis
???
https://support.apple.com/en-us/HT213633
Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213635
Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213638
Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213673
Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213633
Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213635
Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213638
Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213673
Release Notes Vendor Advisory

Signal Intelligence

Confidenceⓘ
95%
EPSS 0.09%
CVSS v3.1 8.8
Mentions 29
Last Seen Mar 11, 2025

CNA Information

Analyst Note

CVE-2023-23529 is confirmed as an actively exploited zero-day with high severity (CVSS 8.8), reported by Google Project Zero and documented in multiple credible sources describing real-world attacks described as 'extremely sophisticated.' Apple's official advisory confirms the type confusion vulnerability in WebKit across multiple iOS, iPadOS, and macOS versions with arbitrary code execution capability.

Triage Info

Decided atMar 03, 2026