Not rated
CVE-2020-12405 When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially…
Description
When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Thunderbird 68.9 | earliest → < 68.9.0 | 68.9.0 |
| Firefox 77 | earliest → < 77 | 77 |
| Firefox ESR 68.9 | earliest → < 68.9 | 68.9 |
Other CVEs of Thunderbird
The 1713 CVEs of Thunderbird →
CVE-2026-118180
Matrix homeserver could redirect the chat session to a local file or network share
7.5
High
CVE-2026-118179
Request forgery via news: links
8.8
High
CVE-2026-118178
RSS feed could redirect its subscription to a local file or network share
5.7
Medium
CVE-2026-118177
Calendar discovery accepted local file and remote network share locations
9.1
Critical