Mozilla Summary

Mozilla has published 73 vulnerabilities in 2026.

Vulnerability Breakdown

CRITICAL
16
HIGH
27
MEDIUM
13
LOW
0

Plus 17 vulnerabilities yet to be given a severity rating.

Vulnerability Severity By Month 2026

Total Mozilla Vulnerabilities

CRITICAL
328
HIGH
683
MEDIUM
710
LOW
16

Plus 1,467 vulnerabilities without a severity rating.

Vulnerability Severity By Year

Vulnerability Published Matrix for 2026

Vulnerability Published Matrix for 2025