What’s Vulnerable › Vulnerabilities

CVE-2023-28204: Apple Multiple Products WebKit Out-of-Bounds Read Vulnerability

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2023-05-22
• EPSS: 14.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-23 · updated 2026-06-17
• Weakness: CWE-125

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. Processing web content may disclose sensitive information. Apple is aware of a report that this issue may have been actively exploited.

Affected products

• Apple iPadOS: before 15.7.6; from 16.0 before 16.5 — fixed in 15.7.6, 16.5
• Apple Iphone Os: before 15.7.6; from 16.0 before 16.5 — fixed in 15.7.6, 16.5
• Apple macOS: from 13.0 before 13.4 — fixed in 13.4
• Apple Safari: before 16.5 — fixed in 16.5
• Apple tvOS: before 16.5 — fixed in 16.5
• Apple watchOS: before 9.5 — fixed in 9.5
• Webkitgtk+: before 2.42.3 — fixed in 2.42.3

How to fix

Upgrade to a fixed version: Apple iPadOS 15.7.6, 16.5; Apple Iphone Os 15.7.6, 16.5; Apple macOS 13.4; Apple Safari 16.5; Apple tvOS 16.5; Apple watchOS 9.5; Webkitgtk+ 2.42.3. Check the vendor advisory for mitigations.

References

• https://security.gentoo.org/glsa/202401-04
• https://support.apple.com/en-us/HT213757
• https://support.apple.com/en-us/HT213758
• https://support.apple.com/en-us/HT213761
• https://support.apple.com/en-us/HT213762
• https://support.apple.com/en-us/HT213764
• https://support.apple.com/en-us/HT213765
• https://security.gentoo.org/glsa/202401-04
• https://support.apple.com/en-us/HT213757
• https://support.apple.com/en-us/HT213758
• https://support.apple.com/en-us/HT213761
• https://support.apple.com/en-us/HT213762

Get alerted when CVE-2023-28204 or the next vulnerability affects your stack