CVE-2021-43536
Medium
Description
Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose the target URL. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Mozilla Firefox
PublishedDec 8, 2021
First seenDec 8, 2021
How to fix
Update
- mozilla firefox95.0 or later
- mozilla firefox_esr91.4.0 or later
- mozilla thunderbird91.4.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 95.0 | 95.0 |
| mozilla firefox_esr | v < 91.4.0 | 91.4.0 |
| mozilla thunderbird | v < 91.4.0 | 91.4.0 |
| debian debian_linux | 9.0, 10.0, 11.0 | — |
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