Tuesday 14 October 2025
October 2025: 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
October 2025: 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 20 Oct, 23 Oct.
MSRC's October 2025 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
- 5
Release calendar · October 2025
Wed 1 Oct
Thu 2 Oct
Fri 3 Oct
Sat 4 Oct
Sun 5 Oct
Mon 6 Oct
Tue 7 Oct
Wed 8 Oct
Thu 9 Oct
Fri 10 Oct
Sat 11 Oct
Sun 12 Oct
Mon 13 Oct
Tue 14 Oct
Wed 15 Oct
Thu 16 Oct
Fri 17 Oct
Sat 18 Oct
Sun 19 Oct
Mon 20 Oct
Tue 21 Oct
Wed 22 Oct
Thu 23 Oct
Fri 24 Oct
Sat 25 Oct
Sun 26 Oct
Mon 27 Oct
Wed 29 Oct
Thu 30 Oct
Fri 31 Oct
Patch Tuesday and security (B) releasesPreview (D) releasesOut-of-band releases.NET Framework servicing packagesEdge, Office, Teams, Defender and server releasesAll product versions