CVEs / CVE-2019-11708
CVE-2019-11708: Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability
- Known exploited in the CISA KEV catalog since 23 May 2022
- critical 10 CVSS 3.1 (NVD)
- EPSS 55.8% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Mozilla Firefox and Thunderbird contain a sandbox escape vulnerability that could result in remote code execution.
Description
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Mozilla Firefox ESR | from unspecified, before 60.7.2 | 60.7.2 |
| Mozilla Firefox | from unspecified, before 67.0.4 | 67.0.4 |
| Mozilla Thunderbird | from unspecified, before 60.7.2 | 60.7.2 |
Exploitation
| In CISA KEV since | 23 May 2022 |
|---|---|
| Due date for US federal agencies | 13 Jun 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 10 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-20 |
References
- CVE-2019-11708 on NVD
- CVE-2019-11708 in the CISA KEV catalog
- CVE-2019-11708 on OSV
- http://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain-Exploit.html Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1559858 Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/201908-12 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-19/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-20/ Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-11708 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.