Cyber Resilience

CVE-2021-30980

High

Published: 24 August 2021

Published
24 August 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0059 69.7th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-30980 is a high-severity Use After Free (CWE-416) vulnerability in Apple Mac Os X. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 30.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. An application may be…

more

able to execute arbitrary code with kernel privileges.

CWE(s)
CWE-416

Related Threats

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

Affected Assets

apple
ipados
≤ 15.2
apple
iphone os
≤ 15.2
apple
mac os x
10.15.7 · 10.15 — 10.15.7
apple
macos
11.0 — 11.6.2 · 12.0 — 12.1
apple
tvos
≤ 15.2
apple
watchos
≤ 8.3

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-16 Memory Protection
addresses: CWE-416

Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.

References