MFSA2025-46: Security Vulnerabilities fixed in Thunderbird 128.11

Published May 27, 2025
·
Updated

Security Vulnerabilities fixed in Thunderbird 128.11

Affected Software

1 affected componentFixes available
Mozilla Thunderbird<128.11
128.11

Event History

May 27, 2025
Advisory Published
via Mozilla·12:00 AM
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Frequently Asked Questions

1

What is the severity of MFSA2025-46?

The severity of MFSA2025-46 is categorized as high due to several critical vulnerabilities addressed in Thunderbird 128.11.

2

How do I fix MFSA2025-46?

To fix MFSA2025-46, upgrade your Thunderbird to version 128.11 or later.

3

What vulnerabilities are addressed in MFSA2025-46?

MFSA2025-46 addresses multiple security vulnerabilities that could lead to information disclosure and denial of service.

4

Which versions of Thunderbird are affected by MFSA2025-46?

MFSA2025-46 affects all versions of Thunderbird prior to 128.11.

5

Is it safe to continue using an unsupported version of Thunderbird after MFSA2025-46?

It is not safe to continue using an unsupported version of Thunderbird after MFSA2025-46 due to unresolved security vulnerabilities.

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