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May 2026

CVEs published May 21, 2026

187 CVEs were published on May 21, 2026: 15 critical, 72 high. 2 are now in CISA KEV.

Published
187
Critical
15
High
72
Medium
68
Low
31
Unrated
1
Now in CISA KEV
2
Fix available
126

Most affected products

Concrete CMS · concrete5/concrete5
41
Open ISES Tickets
37
Netatalk
33
Trend Micro TrendAI Apex One
16
Linux
8
FreeBSD
7
PowerDNS Authoritative
5
BerriAI litellm · litellm
2
Honeywell International Control Network Module
2
themefusion Avada (Fusion) Builder
2

Critical 15

High 72

Medium, low and unrated 100