What’s Vulnerable › Vulnerabilities

CVE-2023-23517

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% 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-119

Description

The issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.6.3, macOS Ventura 13.2, watchOS 9.3, macOS Big Sur 11.7.3, Safari 16.3, tvOS 16.3, iOS 16.3 and iPadOS 16.3. Processing maliciously crafted web content may lead to arbitrary code execution.

Affected products

• Apple iPadOS: before 16.3 — fixed in 16.3
• Apple Iphone Os: before 16.3 — fixed in 16.3
• Apple macOS: before 11.7.3; from 12.0 before 12.6.3; from 13.0 before 13.2 — fixed in 11.7.3, 12.6.3, 13.2
• Apple Safari: before 16.3 — fixed in 16.3
• Apple tvOS: before 16.3 — fixed in 16.3
• Apple watchOS: before 9.3 — fixed in 9.3

How to fix

Upgrade to a fixed version: Apple iPadOS 16.3; Apple Iphone Os 16.3; Apple macOS 11.7.3, 12.6.3, 13.2; Apple Safari 16.3; Apple tvOS 16.3; Apple watchOS 9.3. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT213599
• https://support.apple.com/en-us/HT213600
• https://support.apple.com/en-us/HT213601
• https://support.apple.com/en-us/HT213603
• https://support.apple.com/en-us/HT213604
• https://support.apple.com/en-us/HT213605
• https://support.apple.com/en-us/HT213606
• https://support.apple.com/en-us/HT213638
• https://support.apple.com/en-us/HT213599
• https://support.apple.com/en-us/HT213600
• https://support.apple.com/en-us/HT213601
• https://support.apple.com/en-us/HT213603

Get alerted when CVE-2023-23517 or the next vulnerability affects your stack