CVE-2021-30797

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

This issue was addressed with improved checks. This issue is fixed in iOS 14.7, Safari 14.1.2, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7. Processing maliciously crafted web content may lead to code execution.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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-2021-307987.5A logic issue was addressed with improved state management. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6. A malicious apCVE-2021-307998.8Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, SecuritCVE-2021-308008.8This issue was addressed with improved checks. This issue is fixed in iOS 14.7. Joining a malicious Wi-Fi network may result in a denial of CVE-2021-308028.8A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.7, tvOS 14.7. Processing maliciously craCVE-2021-308033.3A permissions issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.5. A malicious application may be able tCVE-2021-308043.3A permissions issue was addressed with improved validation. This issue is fixed in iOS 14.7. A malicious application may be able to access FCVE-2021-308059.8A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 CVE-2021-308077.8A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.5.1, iOS 14.7.1 and iPadOS 14CVE-2021-308085.5This issue was addressed with improved checks. This issue is fixed in tvOS 15, watchOS 8, iOS 15 and iPadOS 15. A malicious application may CVE-2021-308098.8A use after free issue was addressed with improved memory management. This issue is fixed in Safari 15, tvOS 15, watchOS 8, iOS 15 and iPadOCVE-2021-308104.3An authorization issue was addressed with improved state management. This issue is fixed in iOS 15 and iPadOS 15, watchOS 8, tvOS 15. An attCVE-2021-308115.5This issue was addressed with improved checks. This issue is fixed in iOS 15 and iPadOS 15, watchOS 8. A local attacker may be able to read
CVE-2021-30797: High severity, CVSS 8.8 | Vulnix