CVEvulnerability

CVE-2023-23529

8.8 HIGH Known exploited Published 2023-02-27 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Apple Multiple Products WebKit Type Confusion Vulnerability — Apple Multiple Products

Apple iOS, MacOS, Safari and iPadOS WebKit contain a type confusion vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

Added to KEV: 2023-02-14
Remediation due: 2023-03-07
Ransomware use: Unknown
Required action: Apply updates per vendor instructions.
Notes: https://support.apple.com/en-us/HT213635, https://support.apple.com/en-us/HT213633, https://support.apple.com/en-us/HT213638; https://nvd.nist.gov/vuln/detail/CVE-2023-23529

Status: Analyzed
Published: 2023-02-27
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses: CWE-843

Description

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 configurations

• apple safari (< 16.3) • apple ipados (< 15.7.4) • apple ipados (>= 16.0 < 16.3.1) • apple iphone os (< 15.7.4) • apple iphone os (>= 16.0 < 16.3.1) • apple macos (>= 13.0 < 13.2.1)

Weakness · CWE (1)

CWE-843 Access of Resource Using Incompatible Type weakness

References