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December 2025

CVEs published December 9, 2025

667 CVEs were published on December 9, 2025: 42 critical, 217 high. 2 are now in CISA KEV.

Published
667
Critical
42
High
217
Medium
289
Low
13
Unrated
106
Now in CISA KEV
2
Fix available
232

Most affected products

Linux
152
Microsoft Windows
38
MailEnable
14
Phoenix Contact FL SWITCH · Phoenix Contact FL NAT
14
Mozilla Firefox · Mozilla Thunderbird
13
Adobe ColdFusion
11
Microsoft 365 Apps for Enterprise · Microsoft Excel +1
6
Siemens RUGGEDCOM ROX MX5000 · Siemens RUGGEDCOM ROX MX5… +9
6
OPEN BMCS OpenBMCS
5
Siemens SIMATIC CN
5

Critical 42

High 217

Medium, low and unrated 408