critical9.6
CVE-2026-7321
Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component.
Impact
Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mozilla | Firefox | before 140.10.1 before 150.0 |
| Mozilla | Thunderbird | before 140.10.1 before 150.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.mozilla.org/show_bug.cgi?id=2029461
- https://www.mozilla.org/security/advisories/mfsa2026-30/
- https://www.mozilla.org/security/advisories/mfsa2026-33/
- https://www.mozilla.org/security/advisories/mfsa2026-36/
- https://www.mozilla.org/security/advisories/mfsa2026-39/