CVE-2020-36521

HIGH

7.1

CVSS Score

Published: September 23, 2022 at 06:58 PM UTC

Updated: June 17, 2026 at 03:15 AM UTC

7 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity

HIGH7.1

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iCloud · Apple

95%

v < 11.4v < 7.2111.0 ≤ v < 11.4

Affected range stops below 11.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.21, so it looks safe — our inference, not a vendor statement

iPadOS · Apple

95%

v < 14.0

Affected range stops below 14.0, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 14.0

Affected range stops below 14.0, so it looks safe — our inference, not a vendor statement

iTunes · Apple

95%

v < 12.10v < 12.10.9

Affected range stops below 12.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.10.9, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 10.15.7

Affected range stops below 10.15.7, so it looks safe — our inference, not a vendor statement

tvOS · Apple

95%

v < 14.0

Affected range stops below 14.0, so it looks safe — our inference, not a vendor statement

watchOS · Apple

95%

v < 14.0v < 7.0

Affected range stops below 14.0, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references