What is the severity of MFSA2021-23?

The severity of MFSA2021-23 is categorized as high, indicating a significant security risk.

How do I fix MFSA2021-23?

To fix MFSA2021-23, update your Firefox browser to version 89 or later.

What vulnerabilities are addressed in MFSA2021-23?

MFSA2021-23 addresses critical security vulnerabilities that could allow for exploits or unauthorized access.

Which versions of Firefox are affected by MFSA2021-23?

Versions of Firefox prior to 89 are affected by MFSA2021-23 and should be updated.

What defensive measures can I take regarding MFSA2021-23?

In addition to updating Firefox, consider using additional security tools like firewalls and antivirus software to enhance protection.

Vulnerability/
MFSA2021-23

high

1/6/2021

MFSA2021-23: Security Vulnerabilities fixed in Firefox 89

First published: Tue Jun 01 2021(Updated: )

Security Vulnerabilities fixed in Firefox 89

Affected Software	Affected Version	How to fix
Firefox	<89	89

Never miss a vulnerability like this again

Reference Links

https://www.mozilla.org/en-US/security/advisories/mfsa2021-23/ (Advisory)

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

What is the severity of MFSA2021-23?
The severity of MFSA2021-23 is categorized as high, indicating a significant security risk.
How do I fix MFSA2021-23?
To fix MFSA2021-23, update your Firefox browser to version 89 or later.
What vulnerabilities are addressed in MFSA2021-23?
MFSA2021-23 addresses critical security vulnerabilities that could allow for exploits or unauthorized access.
Which versions of Firefox are affected by MFSA2021-23?
Versions of Firefox prior to 89 are affected by MFSA2021-23 and should be updated.
What defensive measures can I take regarding MFSA2021-23?
In addition to updating Firefox, consider using additional security tools like firewalls and antivirus software to enhance protection.

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agent/description
agent/event
agent/trending
agent/source
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collector/mozilla-advisory
source/Mozilla
agent/software-canonical-lookup
agent/software-canonical-lookup-request
vendor/mozilla
canonical/firefox

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Frequently Asked Questions

What is the severity of MFSA2021-23?
The severity of MFSA2021-23 is categorized as high, indicating a significant security risk.
How do I fix MFSA2021-23?
To fix MFSA2021-23, update your Firefox browser to version 89 or later.
What vulnerabilities are addressed in MFSA2021-23?
MFSA2021-23 addresses critical security vulnerabilities that could allow for exploits or unauthorized access.
Which versions of Firefox are affected by MFSA2021-23?
Versions of Firefox prior to 89 are affected by MFSA2021-23 and should be updated.
What defensive measures can I take regarding MFSA2021-23?
In addition to updating Firefox, consider using additional security tools like firewalls and antivirus software to enhance protection.