CVE-2021-23955: Medium severity Mozilla Firefox vulnerability
The browser could have been confused into transferring a pointer lock state into another tab, which could have lead to clickjacking attacks.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Firefoxto a version that resolves this vulnerability.Fixed in 85 - Upgrade
Upgrade
alpine/firefoxto a version that resolves this vulnerability.Fixed in 85.0-r0 - Upgrade
Upgrade
alpine/librewolfto a version that resolves this vulnerability.Fixed in 85.0-r0
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the vulnerability ID for this browser vulnerability?
The vulnerability ID for this browser vulnerability is CVE-2021-23955.
What is the title of this vulnerability?
The title of this vulnerability is 'The browser could have been confused into transferring a pointer lock state into another tab which could have lead to clickjacking attacks.'
What is the description of this vulnerability?
The description of this vulnerability is 'The browser could have been confused into transferring a pointer lock state into another tab, which could have lead to clickjacking attacks.'
What software is affected by this vulnerability?
The software affected by this vulnerability is Mozilla Firefox up to version 85.
What is the severity level of this vulnerability?
The severity level of this vulnerability is high with a severity value of 7.
How can I fix this vulnerability?
To fix this vulnerability, update Mozilla Firefox to a version higher than 85.
Where can I find more information about this vulnerability?
You can find more information about this vulnerability at the following references: [Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1684837) and [Mozilla Security Advisories](https://www.mozilla.org/en-US/security/advisories/mfsa2021-03/).