CVE-2023-40420
Medium
Published: 27 September 2023
Published
27 September 2023
Modified
04 November 2025
KEV Added
—
Patch
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CVSS Score v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score
0.0020
41.9th percentile
Risk Priority
13
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2023-40420 is a medium-severity an unspecified weakness vulnerability in Apple Macos. Its CVSS base score is 6.5 (Medium).
Operationally, ranked at the 41.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-44991
Vulnerability details
The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.6, tvOS 17, iOS 16.7 and iPadOS 16.7, macOS Monterey 12.7, watchOS 10, iOS 17 and iPadOS 17, macOS Sonoma 14. Processing web content may…
more
lead to a denial-of-service.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
apple
ipados
≤ 16.7
apple
iphone os
≤ 16.7
apple
macos
12.0.0 — 12.7 · 13.0 — 13.6
apple
tvos
≤ 17.0
apple
watchos
≤ 10.0
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.