CVE-2020-27931

HighCVSS 7.8/10Last modified Jun 17, 2026

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 iOS 14.0 and iPadOS 14.0, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1, watchOS 7.0, tvOS 14.0. Processing a maliciously crafted font file may lead to arbitrary code execution.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

VendorProductVersions
AppletvOS>= unspecified, < 14.0
ApplewatchOS>= unspecified, < 7.0
AppleiOS and iPadOS>= unspecified, < 14.0
ApplemacOS>= unspecified, < 11.0
ApplemacOS>= unspecified, < 11.1

References

Timeline

Published
Apr 2, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-279327.8A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watCVE-2020-279337.8A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, iCloud for Windows CVE-2020-279356.3Multiple issues were addressed with improved logic. This issue is fixed in iOS 14.2 and iPadOS 14.2, macOS Big Sur 11.0.1, watchOS 7.1, tvOSCVE-2020-279367.1An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issCVE-2020-279375.5A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, SeCVE-2020-279387.8A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, SeCVE-2020-279397.8This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security UpdateCVE-2020-27948.2Vulnerability in the Oracle Email Center product of Oracle E-Business Suite (component: Email Address list and Message Display). Supported vCVE-2020-279404.3This issue was addressed with improved file handling. This issue is fixed in Apple TV app for Fire OS 6.1.0.6A142:7.1.0. An attacker with fiCVE-2020-279417.8A validation issue was addressed with improved logic. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, SecurityCVE-2020-279427.8A logic issue was addressed with improved state management. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-0CVE-2020-279437.8A memory corruption issue existed in the processing of font files. This issue was addressed with improved input validation. This issue is fi