CVE-2020-12388

Description

The Firefox content processes did not sufficiently lockdown access control which could result in a sandbox escape. *Note: this issue only affects Firefox on Windows operating systems.*. This vulnerability affects Firefox ESR < 68.8 and Firefox < 76.

Category

10.0
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.95% Top 25%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2020-16/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2020-17/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1618911 issue tracking vendor advisory
http://packetstormsecurity.com/files/157860/Firefox-Default-Content-Process-DACL-Sandbox-Escape.html vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-12388?
CVE-2020-12388 has been scored as a critical severity vulnerability.
How to fix CVE-2020-12388?
To fix CVE-2020-12388, 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-2020-12388 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-12388 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-12388?
CVE-2020-12388 affects Mozilla Firefox ESR, Mozilla Firefox.
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