CVE-2021-30698

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

A null pointer dereference was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.4, Safari 14.1.1, iOS 14.6 and iPadOS 14.6. A remote attacker may be able to cause a denial of service.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

No affected versions have been published.

Timeline

Published
Sep 8, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-306994.6A window management issue was addressed with improved state management. This issue is fixed in iOS 14.6 and iPadOS 14.6. A user may be able CVE-2021-307005.5This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. CVE-2021-307017.8This issue was addressed with improved checks. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Security Update 2021-003 CatalinaCVE-2021-307024.6A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, SeCVE-2021-307037.8A double free issue was addressed with improved memory management. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Security UpdaCVE-2021-307047.8A logic issue was addressed with improved state management. This issue is fixed in tvOS 14.6, Security Update 2021-004 Mojave, iOS 14.6 and CVE-2021-307055.5This issue was addressed with improved checks. This issue is fixed in tvOS 14.6, Security Update 2021-004 Mojave, iOS 14.6 and iPadOS 14.6, CVE-2021-307065.5Processing a maliciously crafted image may lead to disclosure of user information. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watCVE-2021-307078.8This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. CVE-2021-307087.8An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 CataCVE-2021-307095.5This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security UpdateCVE-2021-307107.1A memory corruption issue was addressed with improved state management. This issue is fixed in tvOS 14.6, Security Update 2021-004 Mojave, i
CVE-2021-30698: High severity, CVSS 7.5 | Vulnix