VYPR
High severity8.8NVD Advisory· Published Jun 24, 2021· Updated Jun 17, 2026

CVE-2021-23995

CVE-2021-23995

Description

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.

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Affected products

43

Patches

Vulnerability mechanics

References

4

News mentions

0

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