# CVE-2019-11708

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.

- Page: https://www.vulneraibility.com/cve/CVE-2019-11708
- CVSS: 10.0
- Known exploited: yes, in CISA KEV since 2022-05-23; CISA due date 2022-06-13
- EPSS: 55.87% (percentile 99.1)
- Public exploit code: 1 on Exploit-DB · 1 GitHub proof of concept (first 2019-09-29)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-02-07)
- Weakness: CWE-20
- Published: 2019-07-23

## Affected versions

- Mozilla Firefox: affected < 67.0.4
- Mozilla Firefox ESR: affected < 60.7.2
- Mozilla Thunderbird: affected < 60.7.2

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://www.mozilla.org/security/advisories/mfsa2019-19/
- [other] https://www.mozilla.org/security/advisories/mfsa2019-20/
- [other] https://bugzilla.mozilla.org/show_bug.cgi?id=1559858
- [advisory] https://security.gentoo.org/glsa/201908-12
- [other] http://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain-Exploit.html
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-11708

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.