9.8
Critical
CVE-2026-0879 Sandbox escape due to incorrect boundary conditions in the Graphics component
Description
Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 147 | earliest → < 147 | 147 |
| Firefox 140.7 | earliest → < 140.7 | 140.7 |
| Firefox 115.32 | earliest → < 115.32 | 115.32 |
| Firefox ESR 140.7 | earliest → < 140.7 | 140.7 |
| Thunderbird 147 | earliest → < 147 | 147 |
| Thunderbird 140.7 | earliest → < 140.7 | 140.7 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Versions not published | |
| Red Hat Enterprise Linux AppStream EUS (v. 10.0) | Versions not published | |
| Red Hat Enterprise Linux AppStream (v. 10) | Versions not published |
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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