CVE-2020-26969HIGH
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
Mozilla developers reported memory safety bugs present in Firefox 82. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 83.
References
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1623920%2C1651705%2C1667872%2C1668876
Details
Source: MITRE
Published: 2020-12-09
Updated: 2020-12-10
Type: CWE-787
Risk Information
CVSS v2
Base Score: 9.3
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 8.6
Severity: HIGH
CVSS v3
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8
Severity: HIGH
Vulnerable Software
Configuration 1
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 143127 | Ubuntu 16.04 LTS : Firefox vulnerabilities (USN-4637-2) | Nessus | Ubuntu Local Security Checks | high |
| 143121 | Ubuntu 18.04 LTS / 20.04 LTS / 20.10 : Firefox vulnerabilities (USN-4637-1) | Nessus | Ubuntu Local Security Checks | high |
| 142911 | Mozilla Firefox < 83.0 | Nessus | MacOS X Local Security Checks | high |
| 142910 | Mozilla Firefox < 83.0 | Nessus | Windows | high |