Apple Products Out-of-Bounds Write Vulnerability in mDNSResponder Component Allowing Denial-of-Service

Vulnerability

A vulnerability exists in the mDNSResponder component of various Apple operating systems, including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. This vulnerability involves an out-of-bounds write issue that was addressed with improved bounds checking. An attacker on the local network may exploit this vulnerability to cause a denial-of-service condition.

Impact

Exploitation of this vulnerability can lead to a denial-of-service condition, causing affected devices to become unresponsive or unavailable.

Remediation

Users can update to the latest versions of the affected operating systems to address this vulnerability. Instructions for updating can be found on the Apple Support website.

Added: May 11, 2026, 9:22 PM
Updated: May 11, 2026, 9:22 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
0.6
exploitability
4.7
remediation
7.7
relevance
8.0
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.