Tuesday 13 May 2025

May 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.

← Apr 2025 Jun 2025 →

Superseded

Newer updates replace May 2025.

The CVEs it fixes are unknown; no open known issues found in the current public evidence; out-of-band fixes followed on 19 May, 23 May, 27 May, 31 May. See November 2026 Patch Tuesday.

MSRC's May 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: 6

Release calendar · March 2028

Wed 1 Mar

Thu 2 Mar

Fri 3 Mar

Sat 4 Mar

Sun 5 Mar

Mon 6 Mar

Tue 7 Mar

Wed 8 Mar

Thu 9 Mar

Fri 10 Mar

Sat 11 Mar

Sun 12 Mar

Mon 13 Mar

Tue 14 Mar

Patch Tuesday

Wed 15 Mar

Thu 16 Mar

Fri 17 Mar

Sat 18 Mar

Sun 19 Mar

Mon 20 Mar

Tue 21 Mar

Wed 22 Mar

Thu 23 Mar

Fri 24 Mar

Sat 25 Mar

Sun 26 Mar

Mon 27 Mar

Tue 28 Mar

Wed 29 Mar

Thu 30 Mar

Fri 31 Mar

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