CVE-2026-4692

Published Mar 24, 2026·Updated Jul 14, 2026

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.

Public Exploits & PoCs1 found

PoC: CVE-2026-4692-trust-me-im-in-rdm

Firefox BrowsingContext field-sync authz bypass (N-day, bug 2017643): forged PContent::CommitBrowsingContextTransaction sets InRDMPane=true from a compromised content process - parent applies it. Prerequisite primitive for privileged-UI touch-event injection.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References

View on NVD Search GitHub Search Google

Get alerted for CVEs like this

Start monitoring free