What’s Vulnerable › Vulnerabilities

CVE-2023-23524

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-02-27 · updated 2026-06-17
• Weakness: CWE-400

Description

A denial-of-service issue was addressed with improved input validation. This issue is fixed in tvOS 16.3.2, iOS 16.3.1 and iPadOS 16.3.1, watchOS 9.3.1, macOS Ventura 13.2.1. Processing a maliciously crafted certificate may lead to a denial-of-service.

Affected products

• Apple iPadOS: before 16.3.1 — fixed in 16.3.1
• Apple Iphone Os: before 16.3.1 — fixed in 16.3.1
• Apple macOS: before 13.2.1 — fixed in 13.2.1
• Apple tvOS: before 16.3.2 — fixed in 16.3.2
• Apple watchOS: before 9.3.1 — fixed in 9.3.1

How to fix

Upgrade to a fixed version: Apple iPadOS 16.3.1; Apple Iphone Os 16.3.1; Apple macOS 13.2.1; Apple tvOS 16.3.2; Apple watchOS 9.3.1. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT213632
• https://support.apple.com/en-us/HT213633
• https://support.apple.com/en-us/HT213634
• https://support.apple.com/en-us/HT213635
• https://support.apple.com/en-us/HT213632
• https://support.apple.com/en-us/HT213633
• https://support.apple.com/en-us/HT213634
• https://support.apple.com/en-us/HT213635

Get alerted when CVE-2023-23524 or the next vulnerability affects your stack