AUGUST 4, 2026
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Case File

CVE-2021-1884

MEDIUM · CVSS 5.9 EPSS 1.62%

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

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.9. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2021-1884
Severity
MEDIUM
CVSS
5.9
EPSS
1.62%

Original NVD Description

A race condition was addressed with improved locking. This issue is fixed in Security Update 2021-004 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, Security Update 2021-003 Catalina, tvOS 14.5, macOS Big Sur 11.3. A remote attacker may be able to cause a denial of service.

Related CVEs

Other vulnerabilities affecting the same vendor(s)