CVE-2023-38596

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-09-27 · updated 2026-06-17

Description

The issue was addressed with improved handling of protocols. This issue is fixed in tvOS 17, iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. An app may fail to enforce App Transport Security.

Affected products

Apple iPadOS: before 17.0 — fixed in 17.0
Apple Iphone Os: before 17.0 — fixed in 17.0
Apple macOS: before 14.0 — fixed in 14.0
Apple tvOS: before 17.0 — fixed in 17.0
Apple watchOS: before 10.0 — fixed in 10.0

How to fix

Upgrade to a fixed version: Apple iPadOS 17.0; Apple Iphone Os 17.0; Apple macOS 14.0; Apple tvOS 17.0; Apple watchOS 10.0. Check the vendor advisory for mitigations.

References

http://seclists.org/fulldisclosure/2023/Oct/10
http://seclists.org/fulldisclosure/2023/Oct/3
http://seclists.org/fulldisclosure/2023/Oct/8
http://seclists.org/fulldisclosure/2023/Oct/9
https://support.apple.com/en-us/HT213936
https://support.apple.com/en-us/HT213937
https://support.apple.com/en-us/HT213938
https://support.apple.com/en-us/HT213940
http://seclists.org/fulldisclosure/2023/Oct/10
http://seclists.org/fulldisclosure/2023/Oct/3
http://seclists.org/fulldisclosure/2023/Oct/8
http://seclists.org/fulldisclosure/2023/Oct/9

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