CVE-2021-30894

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 15.1 and iPadOS 15.1, tvOS 15.1. An application may be able to execute arbitrary code with kernel privileges.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Aug 24, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-308955.5A logic issue was addressed with improved restrictions. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, tvOS 15.1, watchOS 8.1, macOS MCVE-2021-308965.5A logic issue was addressed with improved restrictions. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, tvOS 15.1, watchOS 8.1, macOS MCVE-2021-308976.5An issue existed in the specification for the resource timing API. The specification was updated and the updated specification was implementCVE-2021-308985.5An access issue was addressed with additional sandbox restrictions on third party applications. This issue is fixed in iOS 15 and iPadOS 15.CVE-2021-308997.0A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 CatalinaCVE-2021-309007.8An 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 CVE-2021-309017.8Multiple out-of-bounds write issues were addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.0.1, Security UpdCVE-2021-309027.8A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadCVE-2021-309037.8This issue was addressed with improved checks. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1, macOS MontereyCVE-2021-309045.3A sync issue was addressed with improved state validation. This issue is fixed in macOS Monterey 12.0.1. A user's messages may continue to sCVE-2021-309055.5An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, tCVE-2021-309067.8This issue was addressed with improved checks. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, tvOS 15.1, watchOS 8.
CVE-2021-30894: High severity, CVSS 7.8 | Vulnix