MFSA2026-51: Security Vulnerabilities fixed in Thunderbird 140.11
Published May 19, 2026
·Updated
Security Vulnerabilities fixed in Thunderbird 140.11
Affected Software
1 affected componentFixes available
Mozilla Thunderbird<140.11
140.11
Event History
May 19, 2026
Advisory Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of MFSA2026-51?
The severity of MFSA2026-51 is rated high with a score of 7.
2
What vulnerabilities are addressed in MFSA2026-51?
MFSA2026-51 addresses various security vulnerabilities fixed in Thunderbird version 140.11.
3
How do I fix MFSA2026-51?
To fix MFSA2026-51, update to Mozilla Thunderbird version 140.11 or later.
4
When was MFSA2026-51 published?
MFSA2026-51 was published on May 19, 2026.
5
Which software is affected by MFSA2026-51?
MFSA2026-51 affects Mozilla Thunderbird.