Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
CVE-2026-4692 Sandbox escape in the Responsive Design Mode component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, and Firefox ESR < 140.9. https://www.cve.org/CVERecord?id=CVE-2026-4692
Post summary
The text announces CVE-2026-4692 as a sandbox escape in Firefox’s Responsive Design Mode, affecting versions below 149, ESR 115.34, and ESR 140.9, and provides a link to the CVE record.
4 of 4 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | mozilla | firefox | - | - | - |
| App | mozilla | firefox | - | - | - |
| App | mozilla | thunderbird | - | - | - |
| App | mozilla | thunderbird | - | - | - |