SEPTEMBER 29, 2026
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Case File

CVE-2021-30805

CRITICAL · CVSS 9.8 EPSS 3.15%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-08 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. See the original NVD description below for full technical details.

CVE
CVE-2021-30805
Severity
CRITICAL
CVSS
9.8
EPSS
3.15%

Original NVD Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. An application may be able to execute arbitrary code with kernel privileges.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-86950 HIGH CVE-2026-83964 MEDIUM CVE-2026-75698 CRITICAL CVE-2026-75697 CRITICAL CVE-2026-75689 CRITICAL CVE-2026-75686 CRITICAL