CVE-2020-27933

HIGH

7.8

CVSS Score

Published: April 2, 2021 at 05:34 PM UTC

Updated: June 17, 2026 at 03:09 AM UTC

6 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity

HIGH7.8

Exploit prediction

EPSS 1%

Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, iCloud for Windows 7.20, watchOS 6.2.8, tvOS 13.4.8, macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. Processing a maliciously crafted image may lead to arbitrary code execution.

Affected

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

iCloud · Apple

95%

v < 7.20

Affected range stops below 7.20, so it looks safe — our inference, not a vendor statement

iPadOS · Apple

95%

v < 13.6

Affected range stops below 13.6, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 13.6

Affected range stops below 13.6, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 10.15v < 13.4v < 6.2v < 7.2010.15 ≤ v < 10.15.610.15.6 10.15.6 supplemental_update

Affected range stops below 10.15, so it looks safe — our inference, not a vendor statement

Affected range stops below 10.15.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.20, so it looks safe — our inference, not a vendor statement

tvOS · Apple

95%

v < 13.4.8

Affected range stops below 13.4.8, so it looks safe — our inference, not a vendor statement

watchOS · Apple

95%

v < 6.2.8

Affected range stops below 6.2.8, 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