CVE-2021-30900

State: Published
Severity: 7.8 High
Published: Aug 24, 2021
Updated: Oct 21, 2025
Reserved: Apr 13, 2021

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
iOS and iPadOSApple	before 15.1Affected
iOS and iPadOSApple	before 14.8Affected

References

https://support.apple.com/kb/HT212872
https://support.apple.com/en-us/HT212867
https://support.apple.com/en-us/HT212868
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30900government-resource

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