Security Resilience

CVE-2023-42956

Apple Safari ≤ 17.2

Published
28 March 2024
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0098 62th percentile
Risk Priority 52 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-2023-42956 is a medium-severity an unspecified weakness vulnerability in Apple Safari. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 38% 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 Safari 17.2, iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2. Processing web content may lead to a denial-of-service.

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-28205Same product: Apple Ipados
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CVE-2026-20656Same product: Apple Ipados
CVE-2023-42833Same product: Apple Ipados
CVE-2024-40794Same product: Apple Ipados
CVE-2023-43010Same product: Apple Ipados
CVE-2026-28871Same product: Apple Ipados
CVE-2025-43368Same product: Apple Ipados
CVE-2025-30467Same product: Apple Ipados

Affected Assets

apple
safari
≤ 17.2
apple
ipados
≤ 17.2
apple
iphone os
≤ 17.2
apple
macos
14.0 — 14.2

Mitigating Controls

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

References