high
7.8
CWE
20 190
Advisory Published
CVE Published
Updated

CVE-2021-30760: Input Validation

First published: Mon Jul 19 2021(Updated: )

FontParser. An integer overflow was addressed through improved input validation.

Credit: Sunglin Knownsec 404 teamSunglin Knownsec 404 teamSunglin Knownsec 404 teamSunglin Knownsec 404 teamSunglin Knownsec 404 team product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple macOS<11.5
11.5
tvOS<14.7
14.7
macOS Catalina
macOS Mojave
Apple iOS, iPadOS, and watchOS<7.6
7.6
Apple iOS, iPadOS, and watchOS<14.7
iOS<14.7
Apple iOS and macOS=10.14
Apple iOS and macOS=10.14.0
Apple iOS and macOS=10.14.1
Apple iOS and macOS=10.14.2
Apple iOS and macOS=10.14.3
Apple iOS and macOS=10.14.4
Apple iOS and macOS=10.14.5
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6-security_update_2019-001
Apple iOS and macOS=10.14.6-security_update_2019-002
Apple iOS and macOS=10.14.6-security_update_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2020-004
Apple iOS and macOS=10.14.6-security_update_2020-005
Apple iOS and macOS=10.14.6-security_update_2020-006
Apple iOS and macOS=10.14.6-security_update_2020-007
Apple iOS and macOS=10.14.6-security_update_2021-001
Apple iOS and macOS=10.14.6-security_update_2021-002
Apple iOS and macOS=10.14.6-security_update_2021-003
Apple iOS and macOS=10.14.6-security_update_2021-004
Apple iOS and macOS=10.14.6-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
Apple iOS and macOS=10.15
Apple iOS and macOS=10.15.1
Apple iOS and macOS=10.15.2
Apple iOS and macOS=10.15.3
Apple iOS and macOS=10.15.4
Apple iOS and macOS=10.15.5
Apple iOS and macOS=10.15.6
Apple iOS and macOS=10.15.6-supplemental_update
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-security_update_2020
Apple iOS and macOS=10.15.7-security_update_2020-001
Apple iOS and macOS=10.15.7-security_update_2020-005
Apple iOS and macOS=10.15.7-security_update_2020-007
Apple iOS and macOS=10.15.7-security_update_2021-001
Apple iOS and macOS=10.15.7-security_update_2021-002
Apple iOS and macOS=10.15.7-security_update_2021-003
Apple iOS and macOS=10.15.7-supplemental_update
Apple iOS and macOS>=11.0<11.5
tvOS<14.7
Apple iOS, iPadOS, and watchOS<7.6

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-2021-30760?

    CVE-2021-30760 is a vulnerability in the FontParser component that allows for integer overflow due to inadequate input validation.

  • Which software is affected by CVE-2021-30760?

    CVE-2021-30760 affects multiple versions of Apple software including Mojave, watchOS, tvOS, Catalina, and macOS Big Sur.

  • How does CVE-2021-30760 impact the affected software?

    CVE-2021-30760 can result in an integer overflow, which could potentially lead to arbitrary code execution or other security issues.

  • How can I fix CVE-2021-30760?

    To fix CVE-2021-30760, it is recommended to update to the latest version of the affected Apple software, as the vulnerability has been addressed through improved input validation.

  • Where can I find more information about CVE-2021-30760?

    For more information about CVE-2021-30760, you can refer to the following Apple support articles: [https://support.apple.com/en-us/HT212605](https://support.apple.com/en-us/HT212605), [https://support.apple.com/en-us/HT212604](https://support.apple.com/en-us/HT212604), [https://support.apple.com/en-us/HT212600](https://support.apple.com/en-us/HT212600).

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