What is the severity of MFSA2025-20?

The severity of MFSA2025-20 is classified as high.

How do I fix MFSA2025-20?

To fix MFSA2025-20, update Firefox to version 137 or later.

What types of vulnerabilities are addressed in MFSA2025-20?

MFSA2025-20 addresses multiple security vulnerabilities affecting the Firefox browser.

Which versions of Firefox are affected by MFSA2025-20?

Firefox versions prior to 137 are affected by MFSA2025-20.

Is there a risk of exploitation for MFSA2025-20?

Yes, there is a risk of exploitation for the vulnerabilities fixed in MFSA2025-20 if not resolved.

Vulnerability/
MFSA2025-20

high

1/4/2025

MFSA2025-20: Security Vulnerabilities fixed in Firefox 137

First published: Tue Apr 01 2025(Updated: )

Security Vulnerabilities fixed in Firefox 137

Affected Software	Affected Version	How to fix
Firefox	<137	137

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Reference Links

https://www.mozilla.org/en-US/security/advisories/mfsa2025-20/ (Advisory)

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

What is the severity of MFSA2025-20?
The severity of MFSA2025-20 is classified as high.
How do I fix MFSA2025-20?
To fix MFSA2025-20, update Firefox to version 137 or later.
What types of vulnerabilities are addressed in MFSA2025-20?
MFSA2025-20 addresses multiple security vulnerabilities affecting the Firefox browser.
Which versions of Firefox are affected by MFSA2025-20?
Firefox versions prior to 137 are affected by MFSA2025-20.
Is there a risk of exploitation for MFSA2025-20?
Yes, there is a risk of exploitation for the vulnerabilities fixed in MFSA2025-20 if not resolved.

collector/mozilla-advisory
source/Mozilla
agent/software-canonical-lookup
agent/title
agent/last-modified-date
agent/references
agent/tags
agent/severity
agent/softwarecombine
agent/description
agent/type
agent/first-publish-date
agent/source
agent/event
vendor/mozilla
canonical/firefox

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Frequently Asked Questions

What is the severity of MFSA2025-20?
The severity of MFSA2025-20 is classified as high.
How do I fix MFSA2025-20?
To fix MFSA2025-20, update Firefox to version 137 or later.
What types of vulnerabilities are addressed in MFSA2025-20?
MFSA2025-20 addresses multiple security vulnerabilities affecting the Firefox browser.
Which versions of Firefox are affected by MFSA2025-20?
Firefox versions prior to 137 are affected by MFSA2025-20.
Is there a risk of exploitation for MFSA2025-20?
Yes, there is a risk of exploitation for the vulnerabilities fixed in MFSA2025-20 if not resolved.