Tuesday 12 May 2026

May 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.

← Apr 2026 Jun 2026 →

Superseded

Newer updates replace May 2026.

The CVEs it fixes are unknown; no open known issues found in the current public evidence. See November 2026 Patch Tuesday.

MSRC's May 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: 0

Release calendar · February 2030

Fri 1 Feb

Sat 2 Feb

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Mon 4 Feb

Tue 5 Feb

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Patch Tuesday

Wed 13 Feb

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Thu 28 Feb

Patch Tuesday and security (B) releasesPreview (D) releasesOut-of-band releases.NET Framework servicing packagesEdge, Office, Teams, Defender and server releasesAll product versions