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CVE-2023-40385

MEDIUM
6.5
CVSS Score
Published: January 10, 2024 at 10:03 PM UTC
Updated: June 17, 2026 at 06:17 AM UTC
4 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Sonoma 14, Safari 17, iOS 17 and iPadOS 17. A remote attacker may be able to view leaked DNS queries with Private Relay turned on.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iPadOS· Apple
95%
v < 17
Affected range stops below 17, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.0, so it looks safe — our inference, not a vendor statement
iPhone OS· Apple
95%
v < 17.0
Affected range stops below 17.0, so it looks safe — our inference, not a vendor statement
macOS· Apple
95%
v < 14
Affected range stops below 14, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.0, so it looks safe — our inference, not a vendor statement
Safari· Apple
95%
v < 17
Affected range stops below 17, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Release NotesVendor Advisory
Source: [email protected]
https://support.apple.com/en-us/HT213938
Release NotesVendor Advisory
Source: [email protected]
https://support.apple.com/en-us/HT213940
Release NotesVendor Advisory
Source: [email protected]
https://support.apple.com/en-us/HT213941

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfoCWE-200

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