MFSA2026-45: Security Vulnerabilities fixed in Firefox 150.0.3
Published May 12, 2026
·Updated
Security Vulnerabilities fixed in Firefox 150.0.3
Affected Software
1 affected componentFixes available
Mozilla Firefox<150.0.3
150.0.3
Event History
May 12, 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 MFSA2026-45?
The severity of MFSA2026-45 is high, indicating significant vulnerabilities that can impact user security.
2
How do I fix MFSA2026-45?
To fix MFSA2026-45, update your Firefox to version 150.0.3 or later.
3
What types of vulnerabilities are addressed in MFSA2026-45?
MFSA2026-45 addresses multiple security vulnerabilities including memory safety and potential arbitrary code execution issues.
4
Which versions of Firefox are affected by MFSA2026-45?
Firefox versions prior to 150.0.3 are affected by MFSA2026-45.
5
Is it safe to continue using Firefox after MFSA2026-45?
It is not safe to continue using Firefox before updating to version 150.0.3 or later due to the potential security risks identified in MFSA2026-45.