Vulnerability · Published Dec 8, 2020 · Assigned by apple

CVE-2020-27917

High 7.8

In plain English

A high-severity security flaw in iOS and iPadOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 78% of all known vulnerabilities).

Severity (CVSS NVD)7.8High

Exploit odds (30 days)1.7%top 22.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Apple	watchOS	unspecified – before 7.1
Apple	iOS and iPadOS	unspecified – before 14.2
Apple	tvOS	unspecified – before 14.2
Apple	macOS	unspecified – before 11.0
Apple	macOS	unspecified – before 12.11
Apple	macOS	unspecified – before 11.5

References

https://support.apple.com/en-us/HT211931 x_refsource_MISC
https://support.apple.com/en-us/HT211935 x_refsource_MISC
https://support.apple.com/en-us/HT211928 x_refsource_MISC
https://support.apple.com/en-us/HT211929 x_refsource_MISC
https://support.apple.com/en-us/HT211930 x_refsource_MISC
https://support.apple.com/en-us/HT211933 x_refsource_MISC
20201215 APPLE-SA-2020-12-14-4 Additional information for APPLE-SA-2020-11-13-1 macOS Big Sur 11.0.1 mailing-list, x_refsource_FULLDISC