Executive Summary

Informations
Name CVE-2021-23995 First vendor Publication 2021-06-24
Vendor Cve Last vendor Modification 2024-11-21

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:H/Au:N/C:P/I:P/A:P)
Cvss Base Score 5.1 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity High
Cvss Expoit Score 4.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23995

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-672 Operation on a Resource after Expiration or Release

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 659
Application 10
Application 419

Sources (Detail)

https://bugzilla.mozilla.org/show_bug.cgi?id=1699835
https://www.mozilla.org/security/advisories/mfsa2021-14/
https://www.mozilla.org/security/advisories/mfsa2021-15/
https://www.mozilla.org/security/advisories/mfsa2021-16/
Source Url

Alert History

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Date Informations
2025-02-07 02:27:54
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2024-11-28 13:53:31
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2024-11-01 02:24:12
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2024-10-23 13:20:05
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2024-10-23 02:23:49
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2024-10-22 13:20:44
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2024-08-02 13:22:52
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2024-08-02 01:24:48
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2024-02-10 02:15:59
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2024-02-02 02:23:12
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2024-02-01 12:23:09
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2023-09-05 13:17:31
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2023-09-05 01:22:43
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2023-09-02 13:16:10
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2023-09-02 01:23:02
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2023-08-12 13:22:10
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2023-08-12 01:22:15
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2023-08-11 13:14:35
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2023-08-11 01:22:57
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2023-08-06 13:12:38
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2023-08-06 01:21:59
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2023-08-04 13:13:00
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2023-08-04 01:22:20
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2023-07-14 13:13:02
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2023-07-14 01:22:09
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2023-04-01 02:04:19
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2023-03-29 02:15:20
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2023-03-28 12:22:24
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2022-10-11 13:05:16
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2022-10-11 01:21:56
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2022-04-26 01:56:54
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2021-07-02 21:23:16
  • Multiple Updates
2021-06-24 21:23:09
  • First insertion