Cyber Resilience

CVE-2021-30733

Medium

Published: 08 September 2021

Published
08 September 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 0.0033 56.6th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-30733 is a medium-severity Out-of-bounds Read (CWE-125) vulnerability in Apple Mac Os X. Its CVSS base score is 5.5 (Medium).

Operationally, ranked in the top 43.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

An out-of-bounds read was addressed with improved input validation. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave, macOS Big Sur 11.4, watchOS 7.5. Processing a maliciously crafted font…

more

may result in the disclosure of process memory.

CWE(s)
CWE-125

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

apple
ipados
≤ 14.6
apple
iphone os
≤ 14.6
apple
mac os x
10.14.6, 10.15, 10.15.1, 10.15.2, 10.15.3 · 10.14.0 — 10.14.5
apple
macos
11.0.1 — 11.4
apple
tvos
≤ 14.6
apple
watchos
≤ 7.5

Mitigating Controls

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

References