Cyber Resilience

CVE-2020-27899

High

Published: 02 April 2021

Published
02 April 2021
Modified
21 November 2024
KEV Added
—
Patch
—
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 0.0015 35.2th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2020-27899 is a high-severity Use After Free (CWE-416) vulnerability in Apple Ipados. Its CVSS base score is 7.8 (High).

Operationally, ranked at the 35.2th percentile by exploit likelihood (below the median); 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 iOS 14.2 and iPadOS 14.2, macOS Big Sur 11.0.1, watchOS 7.1, tvOS 14.2. A local attacker may be able to elevate their 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
≤ 14.2
apple
iphone os
≤ 14.2
apple
macos
≤ 11.0.1
apple
tvos
≤ 14.2
apple
watchos
≤ 7.1

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