CVE-2021-30799

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. Processing maliciously crafted web content may lead to arbitrary 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

Weakness enumeration

CWE-787

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

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CVE-2021-30799: High severity, CVSS 8.8 | Vulnix