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April 2026

CVEs published April 21, 2026

352 CVEs were published on April 21, 2026: 34 critical, 129 high.

Published
352
Critical
34
High
129
Medium
170
Low
19
Unrated
0
Now in CISA KEV
0
Fix available
139

Most affected products

Mozilla Firefox · Mozilla Thunderbird
40
Oracle MySQL Server
25
freescout-help-desk freescout
20
WWBN AVideo · wwbn/avideo
19
Oracle VM VirtualBox
9
Oracle Identity Manager Connector
7
Oracle Java SE · Oracle GraalVM for JDK +1
7
mailcow-dockerized
6
Oracle Financial Services Analytical Applications Infrastru…
6
Fortra GoAnywhere MFT
5

Critical 34

High 129

Medium, low and unrated 189