CVE-2020-26979

Public Exploit

Description

When a user typed a URL in the address bar or the search bar and quickly hit the enter key, a website could sometimes capture that event and then redirect the user before navigation occurred to the desired, entered address. To construct a convincing spoof the attacker would have had to guess what the user was typing, perhaps by suggesting it. This vulnerability affects Firefox < 84.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.25%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2020-54/ vendor advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1641287%2C1673299 issue tracking patch vendor advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-26979?
CVE-2020-26979 has been scored as a medium severity vulnerability.
How to fix CVE-2020-26979?
To fix CVE-2020-26979, 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-2020-26979 being actively exploited in the wild?
It is possible that CVE-2020-26979 is being exploited or will be exploited in a near future based on public information. 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-2020-26979?
CVE-2020-26979 affects Mozilla Firefox.
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