High · 7.8 Known exploited CVE-2021-30983 EUVD-2021-17900

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…

Published Aug 24, 2021 · Updated Oct 21, 2025 · Assigned by apple

Vendor: Apple Product: iOS and iPadOS Platform: iOS

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.

Affected products

Vendor	Product	Affected	Fixed
Apple	iOS and iPadOS	unspecified – < 15.2	15.2

Advisories 1

WID-SEC-2022-0489 Apple iOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 5, 2026

References

https://support.apple.com/en-us/HT212976

EUVD	v3.1	7.8
CISA-ADP	v3.1	7.8