Vulnerability Monitor

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CVE-2021-30661

A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.1, iOS 12.5.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..

Published

2021-09-08T15:15:13.320

Last Modified

2025-02-28T14:52:18.750

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

8.6

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-416
  • Type: Secondary
    CWE-416
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application apple safari < 14.1 Yes
Operating System apple ipados < 14.5 Yes
Operating System apple iphone_os < 12.5.3 Yes
Operating System apple iphone_os < 14.5 Yes
Operating System apple macos < 11.3 Yes
Operating System apple tvos < 14.5 Yes
Operating System apple watchos < 7.4 Yes
References