CVE-2023-23529

Name: CVE-2023-23529
Creator: NVD / NIST
Published: 2023-02-27T20:15:14.71+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10Actively ExploitedEPSS 9.50%

Last modified Jun 17, 2026

CVE-2023-23529 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 9.50% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

9.50%

94.8th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Mar 7, 2023.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
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

References

https://support.apple.com/en-us/HT213633Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213635Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213638Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213673Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213633Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213635Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213638Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213673Release Notes, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23529US Government Resource

Timeline

Published: Feb 27, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-23529?

How severe is CVE-2023-23529?

CVE-2023-23529 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 9.50% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2023-23529?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-23529?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST