Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.5.1, iOS 14.7.1 and iPadOS 14.7.1, watchOS 7.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited.

Related CPE's

o

apple

ipados

Vulnerable

o

apple

iphone_os

Vulnerable

o

apple

macos

Vulnerable

o

apple

watchos

Vulnerable

References

https://support.apple.com/en-us/HT212622

Release NotesVendor Advisory

https://support.apple.com/en-us/HT212623

Release NotesVendor Advisory

https://support.apple.com/en-us/HT212713

Release NotesVendor Advisory

https://support.apple.com/en-us/HT212622

Release NotesVendor Advisory

https://support.apple.com/en-us/HT212623

Release NotesVendor Advisory

https://support.apple.com/en-us/HT212713

Release NotesVendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30807

Third Party AdvisoryUS Government Resource

Weaknesses

[email protected]

Primary
CWE-787

134c704f-9b21-4f2e-91b3-4a467353bcc0

Secondary
CWE-787

CVSS impact metrics

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

7.8 · High

Information

Source identifier

[email protected]

Vulnerability status

Analyzed

Published

2021-10-19T12:15:08.313Z

4 years ago

Last modified

2025-10-23T16:02:17.297Z

4 months ago