AUGUST 4, 2026
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Case File

CVE-2021-30683

HIGH · CVSS 7.8 EPSS 1.00%

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 7.8. See the original NVD description below for full technical details.

CVE
CVE-2021-30683
Severity
HIGH
CVSS
7.8
EPSS
1.00%

Original NVD Description

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A malicious application could execute arbitrary code leading to compromise of user information.

Related CVEs

Other vulnerabilities affecting the same vendor(s)