Logic Flaw in Apple Products Exposes DNS Queries
CVE-2025-43376

7.5HIGH

Key Information:

Vendor

Apple
Status
iOS And iPad OS
Safari
TV OS
Visionos
Vendor
CVE Published:
4 November 2025

What is CVE-2025-43376?

A logic flaw has been detected in several Apple products that could allow a remote attacker to access leaked DNS queries when the Private Relay feature is activated. This issue stems from inadequate state management, which has been rectified in the latest updates of Safari, tvOS, watchOS, iOS, iPadOS, and visionOS. Users are encouraged to upgrade to the latest versions to mitigate the risk.

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Affected Version(s)

iOS and iPadOS < 26

Safari < 26

tvOS < 26

References

https://support.apple.com/en-us/125108
https://support.apple.com/en-us/125113
https://support.apple.com/en-us/125114

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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