CVE-2023-42833

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-01-10 · updated 2026-06-17
Weakness: CWE-94

Description

A correctness issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14, Safari 17, iOS 17 and iPadOS 17. Processing web content may lead to arbitrary code execution.

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 Safari: before 17.0 — fixed in 17.0

How to fix

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

References

http://www.openwall.com/lists/oss-security/2024/02/05/8
https://support.apple.com/en-us/HT213938
https://support.apple.com/en-us/HT213940
https://support.apple.com/en-us/HT213941
http://www.openwall.com/lists/oss-security/2024/02/05/8
https://support.apple.com/en-us/HT213938
https://support.apple.com/en-us/HT213940
https://support.apple.com/en-us/HT213941

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