Tuesday 10 March 2026

March 2026: 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.

← Feb 2026 Apr 2026 →

Superseded

Newer updates replace March 2026.

The CVEs it fixes are unknown; no open known issues found in the current public evidence; out-of-band fixes followed on 21 Mar, 31 Mar. See November 2026 Patch Tuesday.

MSRC's March 2026 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: 2

Release calendar · October 2030

Tue 1 Oct

Wed 2 Oct

Thu 3 Oct

Fri 4 Oct

Sat 5 Oct

Sun 6 Oct

Mon 7 Oct

Tue 8 Oct

Patch Tuesday

Wed 9 Oct

Thu 10 Oct

Fri 11 Oct

Sat 12 Oct

Sun 13 Oct

Mon 14 Oct

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Wed 16 Oct

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Fri 18 Oct

Sat 19 Oct

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Mon 21 Oct

Tue 22 Oct

Wed 23 Oct

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Fri 25 Oct

Sat 26 Oct

Sun 27 Oct

Mon 28 Oct

Tue 29 Oct

Wed 30 Oct

Thu 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