CVE-2019-11708

high-risk
Published 2019-07-23

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.

Do I need to act?

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66.5% chance of exploitation in next 30 days
EPSS score — higher than 33% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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1 public exploit available
47752
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
10
CVSS 10.0/10 Critical
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Mozilla

References (11)

Third Party Advisory http://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain...
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1559858
Third Party Advisory https://security.gentoo.org/glsa/201908-12
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-19/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-20/
Third Party Advisory http://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain...
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1559858
Third Party Advisory https://security.gentoo.org/glsa/201908-12
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-19/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-20/
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-...
68
/ 100
high-risk
Severity 33/34 · Critical
Exploitability 26/34 · High
Exposure 9/34 · Low