CVE-2020-26979: Medium severity firefox vulnerability

Published Dec 15, 2020
·
Updated

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.

Affected Software

2 affected componentsFixes available
Mozilla Firefox<84
84
Mozilla Firefox<84.0

Event History

Dec 15, 2020
CVE Published
12:00 AM
Jan 7, 2021
CVE Published
via MITRE·01:51 PM
Data Sourced
via MITRE·01:51 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2020-26979?

CVE-2020-26979 has a medium severity rating due to the potential for spoofing attacks.

2

How do I fix CVE-2020-26979?

To mitigate CVE-2020-26979, update Mozilla Firefox to version 85 or later.

3

What versions of Firefox are affected by CVE-2020-26979?

CVE-2020-26979 affects Mozilla Firefox versions up to and including 84.

4

Can CVE-2020-26979 lead to phishing attacks?

Yes, CVE-2020-26979 could enable attackers to execute convincing phishing attacks through URL redirection.

5

Is there a workaround for CVE-2020-26979?

There are no specific workarounds for CVE-2020-26979 other than updating the browser to the latest version.

Contact

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