Tuesday 14 December 2021
December 2021: is it safe to deploy?
What Microsoft fixed, how urgent it is, and whether anything broke, per Windows version, from Microsoft's release tables, release health, MSRC, CISA, and what the community reports.
Evidence incomplete
December 2021: public evidence is incomplete.
The CVEs it fixes are unknown; no open known issues found in the current public evidence; out-of-band fixes followed on 4 Jan, 5 Jan.
MSRC's December 2021 security update document isn't collected.
ChangeIntel's reading of public signals, not advice; check Microsoft's guidance and test before you deploy. Terms
- Microsoft CVEs
- Unknown
- Exploited fixed
- Unknown
- In CISA KEV
- Unknown
- Open known issues
- 0
- Out-of-band
- 3
Release calendar · May 2030
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