CVE-2020-27917

HIGH 7.8CVE-2020-27917 · Published 08/12/2020 · updated 17/06/2026

In short

CVE-2020-27917 is a HIGH (CVSS 7.8) vulnerability affecting icloud (apple), itunes (apple).
Chance of exploitation in the next 30 days (EPSS): 1.7%, higher than 77.5% of all vulnerabilities.
Fix: update to 11.5, 12.11 or later.

Package	Affected versions	Patched versions
icloud apple	`< 11.5`	`11.5`
itunes apple	`< 12.11`	`12.11`

Description

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, tvOS 14.2, iTunes 12.11 for Windows. Processing maliciously crafted web content may lead to code execution.

References

seclists.org/fulldisclosure/2020/Dec/32 · Mailing List
support.apple.com/en-us/HT211928 · Vendor Advisory
support.apple.com/en-us/HT211929 · Vendor Advisory
support.apple.com/en-us/HT211930 · Vendor Advisory
support.apple.com/en-us/HT211931 · Vendor Advisory
support.apple.com/en-us/HT211933 · Vendor Advisory
support.apple.com/en-us/HT211935 · Vendor Advisory

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Package

Affected versions

Patched versions

icloud

apple

< 11.5

11.5

itunes

apple

< 12.11

12.11

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