Cyber Resilience

CVE-2021-30993

High

Published: 24 August 2021

Published
24 August 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0167 82.5th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-30993 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Apple Ipados. Its CVSS base score is 8.1 (High).

Operationally, ranked in the top 17.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. An attacker in a privileged network position may be able to execute arbitrary…

more

code.

CWE(s)

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
macos
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.

addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References