CVE-2021-30954
High
Published: 24 August 2021
Published
24 August 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.0051
66.9th percentile
Risk Priority
16
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-30954 is a high-severity Type Confusion (CWE-843) vulnerability in Fedoraproject Fedora. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 33.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-17871
Vulnerability details
A type confusion issue was addressed with improved memory handling. This issue is fixed in tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing maliciously crafted web content may lead to arbitrary code execution.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
apple
safari
≤ 15.2
apple
ipados
≤ 15.2
apple
iphone os
≤ 15.2
apple
macos
12.0 — 12.1
apple
tvos
≤ 15.2
apple
watchos
≤ 8.3
fedoraproject
fedora
34, 35
debian
debian linux
10.0, 11.0
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.