9.8
Critical
CVE-2025-1012 A race during concurrent delazification could have led to a use-after-free
Description
A race during concurrent delazification could have led to a use-after-free. This vulnerability was fixed in Firefox 135, Firefox ESR 115.20, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 135 | earliest → < 135 | 135 |
| Firefox 128.7 | earliest → < 128.7 | 128.7 |
| Firefox 115.20 | earliest → < 115.20 | 115.20 |
| Firefox ESR 128.7 | earliest → < 128.7 | 128.7 |
| Thunderbird 135 | earliest → < 135 | 135 |
| Thunderbird 128.7 | earliest → < 128.7 | 128.7 |
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