Live › vulnerability › CVE-2019-11708
Go to dashboardMozilla Firefox and Thunderbird contain a sandbox escape flaw that is listed as exploited in the wild. An attacker who gets a malicious page or message to run can break out of the browser sandbox and run code on the user's machine.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply updates per vendor instructions.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Mozilla Firefox and Thunderbird | vendor | – | – |
Check the installed Firefox or Thunderbird version under Help > About; the sources do not give the affected version range.
Update Firefox and Thunderbird to the latest release, as CISA's required action says: apply updates per vendor instructions.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxed parent process opening web content chosen by a compromised child process. When combined with additional vulnerabilities this could result in executing arbitrary code on the user's computer. This vulnerability affects Firefox ESR < 60.7.2, Firefox < 67.0.4, and Thunderbird < 60.7.2.
This page as .md · .json · in your agent: get_signal("CVE-2019-11708")
CISA KEV catalog, Creative Commons 0 · EPSS scores by FIRST, used with attribution · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.