Cyber Resilience

CVE-2020-36521

High

Published: 23 September 2022

Published
23 September 2022
Modified
22 May 2025
KEV Added
—
Patch
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CVSS Score v3.1 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
EPSS Score 0.0014 34.2th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2020-36521 is a high-severity Out-of-bounds Read (CWE-125) vulnerability in Apple Icloud. Its CVSS base score is 7.1 (High).

Operationally, ranked at the 34.2th percentile by exploit likelihood (below the median); 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 iCloud for Windows 11.4, iOS 14.0 and iPadOS 14.0, watchOS 7.0, tvOS 14.0, iCloud for Windows 7.21, iTunes for Windows 12.10.9. Processing a maliciously crafted tiff…

more

file may lead to a denial-of-service or potentially disclose memory contents.

CWE(s)
CWE-125

Related Threats

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

Affected Assets

apple
icloud
≤ 7.21 · 11.0 — 11.4
apple
itunes
≤ 12.10.9
apple
ipados
≤ 14.0
apple
iphone os
≤ 14.0
apple
macos
≤ 10.15.7
apple
tvos
≤ 14.0
apple
watchos
≤ 7.0

Mitigating Controls

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

References