10.0
Critical
CVE-2026-2776 Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software
Description
Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 148 | earliest → < 148 | 148 |
| Firefox 140.8 | earliest → < 140.8 | 140.8 |
| Firefox 115.33 | earliest → < 115.33 | 115.33 |
| Thunderbird 148 | earliest → < 148 | 148 |
| Thunderbird 140.8 | earliest → < 140.8 | 140.8 |
| 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 | |
| Red Hat Enterprise Linux AppStream (v. 8) | 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
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