CVE-2021-30983

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

Description

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An 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-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
iOS and iPadOSApple	before 15.2Affected

References

https://support.apple.com/en-us/HT212976
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30983government-resource

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