CVE-2021-30665: Apple Multiple Products WebKit Memory Corruption Vulnerability

Published May 3, 2021
·
Updated

A memory corruption issue was addressed with improved state management.

Other sources

Apple iOS, iPadOS, macOS, watchOS, and tvOS WebKit contain a memory corruption vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

CISA

Credit

yangkang &zerokeeper&bianliang@@dnpushme(360 ATA)

Affected Software

17 affected componentsFixes available
debian/webkit2gtk
2.36.4-1~deb10u12.38.6-0+deb10u12.40.5-1~deb11u12.42.1-1~deb11u22.40.5-1~deb12u12.42.1-1~deb12u12.42.1-2
debian/wpewebkit
2.38.6-1~deb11u12.38.6-12.42.1-1
Apple macOS Big Sur<11.3.1
11.3.1
Apple tvOS<14.6
14.6
Apple WatchOS<7.4.1
7.4.1
Apple Multiple Products
Apple Safari<14.1
14.1
Apple iOS<12.5.3
12.5.3
Apple iOS<14.5.1
14.5.1
Apple iPadOS<14.5.1
14.5.1
Apple iPadOS<14.5.1
Apple iPhone OS<12.5.3
Apple iPhone OS>=13.0<14.5.1
Apple macOS<11.3.1
Apple tvOS<14.6
Apple WatchOS<7.4.1
redhat/webkitgtk<2.32.3
2.32.3

Event History

Jul 28, 2021
Data Sourced
via Red Hat·01:37 PM
DescriptionSeverityAffected Software
Sep 8, 2021
CVE Published
via MITRE·02:25 PM
Data Sourced
via MITRE·02:25 PM
DescriptionWeakness
Data Sourced
via NVD·03:15 PM
DescriptionSeverityWeaknessAffected Software
Nov 3, 2021
Known Exploited
via CISA·12:00 AM

Parent advisories

This vulnerability appears in the following advisories.

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 the vulnerability ID for this Apple Multiple Products vulnerability?

The vulnerability ID for this Apple Multiple Products vulnerability is CVE-2021-30665.

2

What products are affected by this vulnerability?

Apple iOS, iPadOS, macOS, watchOS, and tvOS are affected by this vulnerability.

3

What is the severity of CVE-2021-30665?

The severity of CVE-2021-30665 is not specified.

4

How can I fix this vulnerability?

To fix this vulnerability, update your Apple device to the recommended versions as mentioned in the Apple support links provided.

5

Where can I find more information about this vulnerability?

You can find more information about this vulnerability in the Apple support links provided.

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