CVEvulnerability

CVE-2021-1884

5.9 MEDIUM Published 2021-09-08 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-09-08
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
Weaknesses
CWE-362

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.

Affected configurations

• apple ipados (< 14.5) • apple iphone os (< 14.5) • apple mac os x (>= 10.14.0 < 10.14.6) • apple mac os x (>= 10.15 < 10.15.7) • apple mac os x 10.14.6 • apple mac os x 10.15.7 • apple macos (>= 11.0 < 11.3) • apple tvos (< 14.5) • apple watchos (< 7.4)

Related

Weakness · CWE (1)

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness

References