Microsoft · Microsoft
Microsoft Exchange Server Subscription Edition RTM security updates
Patch Radar has 11 security fixes for Microsoft Exchange Server Subscription Edition RTM, closing 54 CVEs. The newest security fix is KB5133453, released November 10, 2026.
Latest version
n/a
Release date not known
Security fixes
11
On record in Patch Radar
CVEs
54
Closed by those fixes
Exploited
0
Vendor report or CISA KEV
Security fixes, newest first
| Priority | Fix | Fixed in | CVEs | Exploited | Released |
|---|---|---|---|---|---|
| Urgent | KB5133453 | 9 | Nov 10, 2026 | ||
| Urgent | KB5128895 | 6 | Oct 13, 2026 | ||
| Urgent | KB5129955 | 1 | Oct 2, 2026 | ||
| High | KB5121608 | 9 | Sep 8, 2026 | ||
| Urgent | KB5121573 | 7 | Aug 11, 2026 | ||
| Urgent | KB5103212 | 11 | Jun 9, 2026 | ||
| Routine | KB5074992 | 1 | Feb 10, 2026 | ||
| High | KB5071876 | 2 | Dec 9, 2025 | ||
| High | KB5066366 | 3 | Oct 14, 2025 | ||
| Urgent | KB5047155 | 1 | Aug 12, 2025 | ||
| High | KB5063224 | 4 | Aug 12, 2025 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.