CVE-2019-11708

Known Exploited

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.

Category

10.0
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 65.68% Top 5%
KEV Since 
Vendor Advisory gentoo.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2019-11708?
CVE-2019-11708 has been scored as a critical severity vulnerability.
How to fix CVE-2019-11708?
To fix CVE-2019-11708, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-11708 being actively exploited in the wild?
It is confirmed that CVE-2019-11708 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~66% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-11708?
CVE-2019-11708 affects Mozilla Firefox ESR, Mozilla Firefox, Mozilla Thunderbird.
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