CVE-2020-12390: Critical severity firefox vulnerability
Published May 5, 2020
·Updated
Incorrect origin serialization of URLs with IPv6 addresses could lead to incorrect security checks. This vulnerability affects Firefox < 76.
Affected Software
16 affected componentsFixes available
ubuntu/firefox<76.0+
76.0+
ubuntu/firefox<76.0+
76.0+
ubuntu/firefox<76.0+
76.0+
ubuntu/firefox<76.0+
76.0+
ubuntu/firefox<76.0+
76.0+
ubuntu/firefox<76.0+
76.0+
ubuntu/firefox<76.0+
76.0+
ubuntu/firefox<76.0+
76.0+
ubuntu/firefox<76.0+
76.0+
ubuntu/firefox<76.0+
76.0+
ubuntu/firefox<76.0+
76.0+
ubuntu/firefox<76.0
76.0
ubuntu/firefox<76.0+
76.0+
debian/firefox
130.0-2
Mozilla Firefox<76
76
Mozilla Firefox<76.0
Event History
May 5, 2020
CVE Published
12:00 AM
May 26, 2020
CVE Published
via MITRE·05:03 PM
Data Sourced
via MITRE·05:03 PM
DescriptionWeakness
Jan 11, 2024
Data Sourced
via Launchpad·11:37 PM
Description
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
1
What is the severity of CVE-2020-12390?
CVE-2020-12390 is classified as a moderate severity vulnerability affecting Firefox versions prior to 76.
2
How do I fix CVE-2020-12390?
To fix CVE-2020-12390, upgrade your Firefox browser to version 76 or later.
3
Which versions of Firefox are affected by CVE-2020-12390?
All versions of Firefox prior to 76 are affected by CVE-2020-12390.
4
What type of security issue does CVE-2020-12390 cause?
CVE-2020-12390 can lead to incorrect origin serialization of URLs, affecting security checks.
5
Is there any specific platform where CVE-2020-12390 is relevant?
CVE-2020-12390 is relevant for all platforms running affected versions of Firefox, including various Ubuntu and Debian packages.