CVE-2026-43653
MediumCVSS 6.2Exploitation Probability (EPSS)
Low risk4th percentile - higher than 4% of all known CVEs
Summary
Improved memory handling in iOS, iPadOS, macOS, and tvOS. An attacker on the local network may cause a denial-of-service.
Risk Assessment
An attacker on the same LAN can crash the system or application, disrupting device operation.
Recommendation
Update to iOS 18.7.9/26.5, iPadOS 18.7.9/26.5, macOS Sequoia 15.7.8, Sonoma 14.8.7, Tahoe 26.5, tvOS 26.5.
Other vulnerabilities in iOS
See all- CVE-2026-86904Unknown
A privacy issue was addressed with improved state management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, watchOS 27. An app may be able to track users across apps and websites without permission.
- CVE-2026-86903Unknown
An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. An app may be able to disclose kernel memory.
- CVE-2026-43674Unknown
An authentication issue in iOS 27 and iPadOS 27 was addressed with improved state management. An attacker with physical access to an unlocked device may be able to view Wi-Fi passwords without authentication.
- CVE-2026-28938Unknown
A privacy issue was addressed by moving sensitive data. The issue affects iOS 26.6 and iPadOS 26.6. An app may be able to fingerprint the user.
Original NVD description (English source)
The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.8, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5. An attacker on the local network may be able to cause a denial-of-service.

