CVE-2021-30796

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

A logic issue was addressed with improved validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. Processing a maliciously crafted image may lead to a denial of service.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected software

VendorProductVersions
AppleSecurity Update - Catalina>= unspecified, < 2021
AppleiOS>= unspecified, < 14.7
ApplemacOS>= unspecified, < 11.5
ApplemacOS>= unspecified, < 2021

References

Timeline

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

Related CVEs from 2021

CVE-2021-307978.8This 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. PCVE-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 att
CVE-2021-30796: Medium severity, CVSS 6.5 | Vulnix