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, iOS 18.7.7 and iPadOS 18.7.7, iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 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

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

Affected Versions

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

Exploit Probability

EPSS
0.06%
Percentile
19.04%

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.