AUGUST 4, 2026
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Case File

CVE-2021-1784

HIGH · CVSS 7.5 EPSS 1.97%

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

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. See the original NVD description below for full technical details.

CVE
CVE-2021-1784
Severity
HIGH
CVSS
7.5
EPSS
1.97%

Original NVD Description

A permissions issue existed in DiskArbitration. This was addressed with additional ownership checks. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A malicious application may be able to modify protected parts of the file system.

Related CVEs

Other vulnerabilities affecting the same vendor(s)