CVE-2023-39434highCWE-416

CVE-2023-39434: high-severity vulnerability in Apple watchOS

Published 26 Sep 2023 · Updated 02 May 2025

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.8epss 1.7%

A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. Processing web content may lead to arbitrary code execution.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Apple · iOS and iPadOS Apple · macOS Apple · watchOS

Related CVEs — Apple watchOS

In the same product, most dangerous first.

CVE-2021-30860HIGHCVE-2021-30860EPSS 76.0%KEV CVE-2021-30657MEDIUMCVE-2021-30657EPSS 68.5%KEV CVE-2025-43300CRITICALCVE-2025-43300EPSS 65.2%KEV CVE-2023-41064HIGHCVE-2023-41064EPSS 53.4%KEV CVE-2023-32434HIGHCVE-2023-32434EPSS 51.5%KEV CVE-2021-30807HIGHCVE-2021-30807EPSS 28.8%KEV

References

http://seclists.org/fulldisclosure/2023/Oct/3 http://seclists.org/fulldisclosure/2023/Oct/8 http://seclists.org/fulldisclosure/2023/Oct/9 https://security.gentoo.org/glsa/202401-33 https://support.apple.com/en-us/HT213937 https://support.apple.com/en-us/HT213938 https://support.apple.com/en-us/HT213940 https://webkitgtk.org/security/WSA-2023-0009.html http://www.openwall.com/lists/oss-security/2023/09/28/3