What’s Vulnerable › Vulnerabilities

CVE-2026-28819

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-11 · updated 2026-10-26
• Weakness: CWE-787

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. An app may be able to execute arbitrary code with kernel privileges.

Affected products

• Apple iPadOS: before 18.7.9 — fixed in 18.7.9
• Apple Iphone Os: before 18.7.9 — fixed in 18.7.9
• Apple macOS: from 14.0 before 14.8.7; from 15.0 before 15.7.7; from 26.0 before 26.5 — fixed in 14.8.7, 15.7.7, 26.5

How to fix

Upgrade to a fixed version: Apple iPadOS 18.7.9; Apple Iphone Os 18.7.9; Apple macOS 14.8.7, 15.7.7, 26.5. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/127111
• https://support.apple.com/en-us/127115
• https://support.apple.com/en-us/127116
• https://support.apple.com/en-us/127117

Get alerted when CVE-2026-28819 or the next vulnerability affects your stack