Vulnerability Database

314,453

Total vulnerabilities in the database

CVE-2021-1816

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A malicious application may be able to execute arbitrary code with kernel privileges.

  • Published: Sep 8, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-1816
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.8
  • AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 9.3
  • AV:N/AC:M/Au:N/C:C/I:C/A:C

CWEs:

Software From Fixed in
apple / iphone_os - 14.5
apple / tvos - 14.5
apple / watchos - 7.4
apple / ipados - 14.5