CVE-2021-30900

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges.

CVSS v3 7.8 HIGH
CVSS v2.0 9.3 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.3^/10

CVSS v2.0 : HIGH

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

Exploitability : 8.6 / Impact : 10.0

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://support.apple.com/en-us/HT212867	Vendor Advisory
https://support.apple.com/en-us/HT212868	Vendor Advisory
https://support.apple.com/kb/HT212872	Vendor Advisory
https://support.apple.com/en-us/HT212867	Vendor Advisory
https://support.apple.com/en-us/HT212868	Vendor Advisory
https://support.apple.com/kb/HT212872	Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30900	US Government Resource

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:apple:ipados::::::::
	cpe:2.3:o:apple:ipados:15.0:::::::*
	cpe:2.3:o:apple:iphone_os::::::::
	cpe:2.3:o:apple:iphone_os:15.0:::::::*
	cpe:2.3:o:apple:macos::::::::

History

No history.

Information

Published : 2021-08-24 19:15

Updated : 2025-10-23 18:02

NVD link : CVE-2021-30900

Mitre link : CVE-2021-30900

CVE.ORG link : CVE-2021-30900

JSON object : View

Products Affected

apple

ipados
macos
iphone_os

CWE

CWE-787

Out-of-bounds Write

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