CVE-2020-12407

Description

Mozilla Developer Nicolas Silva found that when using WebRender, Firefox would under certain conditions leak arbitrary GPU memory to the visible screen. The leaked memory content was visible to the user, but not observable from web content. This vulnerability affects Firefox < 77.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.33%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2020-20/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1637112 issue tracking permissions required vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-12407?
CVE-2020-12407 has been scored as a medium severity vulnerability.
How to fix CVE-2020-12407?
To fix CVE-2020-12407, 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-2020-12407 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-12407 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-12407?
CVE-2020-12407 affects Mozilla Firefox.
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