MFSA2025-63: Security Vulnerabilities fixed in Thunderbird 140.1
Published Jul 22, 2025
·Updated
Security Vulnerabilities fixed in Thunderbird 140.1
Affected Software
1 affected componentFixes available
Mozilla Thunderbird<140.1
140.1
Event History
Jul 22, 2025
Advisory Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
1
What is the severity of MFSA2025-63?
The severity of MFSA2025-63 is categorized as high due to the potential for exploitation.
2
How do I fix MFSA2025-63?
To fix MFSA2025-63, you should update your Mozilla Thunderbird to version 140.1 or later.
3
What vulnerabilities are addressed in MFSA2025-63?
MFSA2025-63 addresses multiple security vulnerabilities that could potentially compromise user data.
4
Which versions of Thunderbird are affected by MFSA2025-63?
Thunderbird versions prior to 140.1 are affected by MFSA2025-63.
5
Is there any impact on user data from the vulnerabilities in MFSA2025-63?
Yes, the vulnerabilities in MFSA2025-63 could lead to unauthorized access to user data.