9.1
Critical
CVE-2025-4083 A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow…
Description
A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 138 | earliest → < 138 | 138 |
| Firefox 128.10 | earliest → < 128.10 | 128.10 |
| Firefox 115.23 | earliest → < 115.23 | 115.23 |
| Firefox ESR 115.23 | earliest → < 115.23 | 115.23 |
| Thunderbird 138 | earliest → < 138 | 138 |
| Thunderbird 128.10 | earliest → < 128.10 | 128.10 |
References
- bugzilla.mozilla.org bugzilla.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
Timeline
- Published
- Last modified
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