Mozilla Summary

Mozilla has published 181 vulnerabilities in 2026.

Vulnerability Breakdown

CRITICAL
61
HIGH
85
MEDIUM
32
LOW
0

Plus 3 vulnerabilities yet to be given a severity rating.

Vulnerability Severity By Month 2026

Total Mozilla Vulnerabilities

CRITICAL
374
HIGH
741
MEDIUM
734
LOW
17

Plus 1,446 vulnerabilities without a severity rating.

Vulnerability Severity By Year

Vulnerability Published Matrix for 2026

Vulnerability Published Matrix for 2025