CVE-2019-11708Insufficient 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 compromise…
Updated under an hour ago ()
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It affects Mozilla Firefox ESR and 2 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since May 23, 2022; federal agencies had to remediate by Jun 13, 2022. Treat that date as your deadline.
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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.
- CVSS
- 10.0 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-20
- Known exploited
- Added to CISA KEV May 23, 2022; federal remediation due Jun 13, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 55.87% (percentile 99)
- Assigned by
- mozilla
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Mozilla Firefox ESR mozilla:firefox_esr (from the name) | from unspecified before 60.7.2 | CNA record |
Mozilla Firefox mozilla:firefox (from the name) | from unspecified before 67.0.4 | CNA record |
Mozilla Thunderbird mozilla:thunderbird (from the name) | from unspecified before 60.7.2 | CNA record |
mozilla firefox mozilla:firefox | before 60.7.2; before 67.0.4 | NVD |
mozilla thunderbird mozilla:thunderbird | before 60.7.2 | NVD |
References
- https://www.mozilla.org/security/advisories/mfsa2019-19/x-refsource-misc, vendor-advisory
- https://www.mozilla.org/security/advisories/mfsa2019-20/x-refsource-misc, vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1559858x-refsource-misc, issue-tracking, vendor-advisory
- https://security.gentoo.org/glsa/201908-12vendor-advisory, x-refsource-gentoo, third-party-advisory
- http://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain-Exploit.htmlx-refsource-misc, third-party-advisory, vdb-entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-11708us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.