Apple Safari DNS Leak via Private Relay Logic Flaw
CVE-2025-43376 Published on November 4, 2025

A logic issue was addressed with improved state management. This issue is fixed in Safari 26, tvOS 26, watchOS 26, iOS 26 and iPadOS 26, visionOS 26. A remote attacker may be able to view leaked DNS queries with Private Relay turned on.

NVD

Vulnerability Analysis

CVE-2025-43376 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
NONE
Availability Impact:
NONE

Products Associated with CVE-2025-43376

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2025-43376 are published in these products:

Apple iOS
 
Apple Safari
 
Apple tvOS
 
Apple visionOS
 
Apple watchOS
 
Apple iPadOS
 
Apple macOS
 
Apple Ios And Ipados
 

Affected Versions

Apple iOS and iPadOS: Apple Safari: Apple tvOS: Apple visionOS: Apple watchOS:

Exploit Probability

EPSS
0.04%
Percentile
12.10%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.