Security Resilience

CVE-2023-42866

Apple Safari ≤ 16.6

Published
10 January 2024
Modified
03 June 2025
Patch / advisory
View advisory
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0076 54th percentile
Risk Priority 65 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-42866 is a high-severity an unspecified weakness vulnerability in Apple Safari. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 46% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, tvOS 16.6, Safari 16.6, watchOS 9.6. Processing web content may lead to arbitrary code execution.

CWE(s)
NVD-CWE-noinfo

Related Threats

CVEs Like This One

CVE-2023-32445Same product: Apple Ipados
CVE-2023-23517Same product: Apple Ipados
CVE-2023-42875Same product: Apple Ipados
CVE-2023-38599Same product: Apple Ipados
CVE-2024-23213Same product: Apple Ipados
CVE-2023-38594Same product: Apple Ipados
CVE-2023-38572Same product: Apple Ipados
CVE-2023-23518Same product: Apple Ipados
CVE-2024-23271Same product: Apple Ipados
CVE-2023-42890Same product: Apple Ipados

Affected Assets

apple
safari
≤ 16.6
apple
ipados
≤ 16.6
apple
iphone os
≤ 16.6
apple
macos
≤ 13.5
apple
tvos
≤ 16.6
apple
watchos
≤ 9.6

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References