Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2021-23995

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.01
EPSS Ranking 76.2%
CVSS Severity
CVSS v3 Score 8.8
CVSS v2 Score 5.1
Products affected by CVE-2021-23995


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