Executive Summary

Informations
Name CVE-2021-30661 First vendor Publication 2021-09-08
Vendor Cve Last vendor Modification 2021-09-20

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Overall CVSS Score 8.8
Base Score 8.8 Environmental Score 8.8
impact SubScore 5.9 Temporal Score 8.8
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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..

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30661

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-416 Use After Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 264
Application 1
Os 1
Os 167
Os 17
Os 1
Os 49
Os 11

Sources (Detail)

Source Url
MISC https://support.apple.com/en-us/HT212317
https://support.apple.com/en-us/HT212318
https://support.apple.com/en-us/HT212323
https://support.apple.com/en-us/HT212324
https://support.apple.com/en-us/HT212325
https://support.apple.com/en-us/HT212341

Alert History

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Date Informations
2021-09-23 00:23:01
  • Multiple Updates
2021-09-22 01:44:20
  • Multiple Updates
2021-09-20 17:22:55
  • Multiple Updates
2021-09-17 21:23:16
  • Multiple Updates
2021-09-08 21:23:14
  • First insertion