CVE-2021-30836
Medium
Published: 28 October 2021
Published
28 October 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score
0.0012
31.0th percentile
Risk Priority
11
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-30836 is a medium-severity Out-of-bounds Read (CWE-125) vulnerability in Apple Safari. Its CVSS base score is 5.5 (Medium).
Operationally, ranked at the 31.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-17753
Vulnerability details
An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.8 and iPadOS 14.8, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing a maliciously crafted audio file may disclose restricted memory.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
apple
safari
≤ 15.0.0
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.