CVE-2021-30818
High
Published: 28 October 2021
Published
28 October 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.0049
66.1th percentile
Risk Priority
18
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-30818 is a high-severity Type Confusion (CWE-843) vulnerability in Apple Safari. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 33.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-17735
Vulnerability details
A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, tvOS 15, iOS 15 and iPadOS 15, Safari 15, watchOS 8. Processing maliciously crafted web content may lead to arbitrary…
more
code execution.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
apple
safari
≤ 15.0
apple
ipados
≤ 14.8
apple
iphone os
≤ 14.8
apple
macos
≤ 12.0.1
apple
tvos
≤ 15.0
apple
watchos
≤ 8.0
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.