CVE-2020-6814
Critical
Description
Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. 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 Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Mozilla Firefox
PublishedMar 25, 2020
First seenMar 25, 2020
How to fix
Update
- mozilla firefox74.0 or later
- mozilla firefox_esr68.6.0 or later
- mozilla thunderbird68.6.0 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 74.0 | 74.0 |
| mozilla firefox_esr | v < 68.6.0 | 68.6.0 |
| mozilla thunderbird | v < 68.6.0 | 68.6.0 |
| canonical ubuntu_linux | 16.04, 18.04, 19.10 | — |
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