CVE-2020-27930: Apple Multiple Products Memory Corruption Vulnerability

Published Nov 5, 2020
·
Updated

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watchOS 6.2.9, Security Update 2020-006 High Sierra, Security Update 2020-006 Mojave, iOS 14.2 and iPadOS 14.2, watchOS 5.3.9, macOS Catalina 10.15.7 Supplemental Update, macOS Catalina 10.15.7 Update. Processing a maliciously crafted font may lead to arbitrary code execution.

Other sources

Apple iOS, iPadOS, macOS, and watchOS FontParser contain a memory corruption vulnerability which may allow for code execution when processing maliciously crafted front.

— CISA

FontParser. A memory corruption issue was addressed with improved input validation.

Credit

Google Project Zero

Affected Software

20 affected componentsFixes available
Apple Multiple Products
Apple macOS Big Sur<11.0.1
11.0.1
Apple High Sierra
Apple Mojave
Apple WatchOS<5.3.9
5.3.9
Apple WatchOS<6.2.9
6.2.9
Apple WatchOS<7.1
7.1
Apple macOS Catalina Supplemental Update<10.15.7
10.15.7
Apple macOS Catalina Update<10.15.7
10.15.7
Apple iOS<12.4.9
12.4.9
Apple iOS<14.2
14.2
Apple iPadOS<14.2
14.2
Apple iPadOS<14.2
Apple iPhone OS<12.4.9
Apple iPhone OS>=14.0<14.2
Apple iOS and macOS<10.15.7
Apple macOS>=11.0<11.0.1
Apple WatchOS<5.3.9
Apple WatchOS>=6.0<6.2.9
Apple WatchOS>=7.0<7.1

Event History

Dec 8, 2020
CVE Published
via MITRE·08:17 PM
Data Sourced
via MITRE·08:17 PM
DescriptionWeakness
Data Sourced
via NVD·09:15 PM
DescriptionSeverityWeaknessAffected Software
Nov 3, 2021
Known Exploited
via CISA·12:00 AM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is CVE-2020-27930?

CVE-2020-27930 is a memory corruption vulnerability in Apple iOS, iPadOS, macOS, and watchOS FontParser.

2

Which Apple products are affected by CVE-2020-27930?

Apple iOS, iPadOS, macOS, and watchOS are affected by CVE-2020-27930.

3

What is the severity of CVE-2020-27930?

The severity of CVE-2020-27930 is not specified in the provided information.

4

How can I fix CVE-2020-27930?

To fix CVE-2020-27930, update your Apple iOS, iPadOS, macOS, and watchOS to the recommended versions provided by Apple.

5

Where can I find more information about CVE-2020-27930?

You can find more information about CVE-2020-27930 on the official Apple support page.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203