high
7.8
CWE
416
Advisory Published
CVE Published
Updated

CVE-2020-27899: Use After Free

First published: Thu Nov 05 2020(Updated: )

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.2 and iPadOS 14.2, macOS Big Sur 11.0.1, watchOS 7.1, tvOS 14.2. A local attacker may be able to elevate their privileges.

Credit: 08Tc3wBB ZecOps product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple macOS<11.0.1
11.0.1
tvOS<14.2
14.2
Apple iOS, iPadOS, and watchOS<7.1
7.1
Apple iOS and iPadOS<14.2
14.2
Apple iOS, iPadOS, and macOS<14.2
14.2
Apple iOS, iPadOS, and macOS<14.2
iPhone OS<14.2
macOS<11.0.1
tvOS<14.2
Apple iOS, iPadOS, and watchOS<7.1

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2020-27899?

    CVE-2020-27899 is a vulnerability in the Symptom Framework that allows for a use after free issue due to improper memory management.

  • Which software is affected by CVE-2020-27899?

    CVE-2020-27899 affects Apple iOS up to version 14.2, Apple iPadOS up to version 14.2, Apple tvOS up to version 14.2, Apple macOS Big Sur up to version 11.0.1, and Apple watchOS up to version 7.1.

  • What is the severity of CVE-2020-27899?

    The severity of CVE-2020-27899 is not specified, but it is a use after free vulnerability that can lead to code execution or information disclosure.

  • How can I fix CVE-2020-27899?

    To fix CVE-2020-27899, update your Apple devices to the latest available version of their respective operating systems.

  • Where can I find more information about CVE-2020-27899?

    You can find more information about CVE-2020-27899 on the official Apple support website.

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.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203