Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-30807

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.

Published

2021-10-19T14:15:08.313

Last Modified

2025-02-28T14:51:26.820

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

10.0

Weaknesses

Type: Primary
CWE-787
Type: Secondary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	apple	ipados	< 14.7.1	Yes
Operating System	apple	iphone_os	< 14.7.1	Yes
Operating System	apple	macos	< 11.5.1	Yes
Operating System	apple	watchos	< 7.6.1	Yes

References

https://support.apple.com/en-us/HT212622 Release Notes, Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212623 Release Notes, Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212713 Release Notes, Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212622 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/en-us/HT212623 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/en-us/HT212713 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)