Vulnerability · Published Apr 2, 2021 · Assigned by apple

CVE-2020-27943

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 1.0% (higher than 63% of all known vulnerabilities).

Severity (CVSS NVD)7.8High

Exploit odds (30 days)1.0%top 36.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A memory corruption issue existed in the processing of font files. This issue was addressed with improved input validation. This issue is fixed in tvOS 14.3, iOS 14.3 and iPadOS 14.3, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, watchOS 7.2. Processing a maliciously crafted font file may lead to arbitrary code execution.

Affected products (as reported)

Vendor	Product	Versions
Apple	iOS and iPadOS	unspecified – before 14.3
Apple	tvOS	unspecified – before 14.3
Apple	watchOS	unspecified – before 7.2
Apple	macOS	unspecified – before 11.1

References

https://support.apple.com/en-us/HT212011 x_refsource_MISC
https://support.apple.com/en-us/HT212003 x_refsource_MISC
https://support.apple.com/en-us/HT212005 x_refsource_MISC
https://support.apple.com/en-us/HT212009 x_refsource_MISC