Microsoft shipped 653 fixes this month, 75 of them rated Critical. A further 762 entries in the same document are third-party CVEs Microsoft republishes or Edge/Chromium updates, carrying 39 Critical — counted separately here, because that total tracks Microsoft's role as a CNA rather than the size of Patch Tuesday. 4 are already under active attack and should be patched today; 1 publicly disclosed zero-day should be closed this week. Everything else fits the normal monthly cycle.
As of 2026-07-26 23:40 UTC, this cycle’s MSRC document lists 1,415 CVEs — 653 Microsoft-authored, plus 464 Edge/Chromium and 298 Linux/other entries that are republished third-party fixes patching through their own vendors. That figure is a reading at a timestamp, not a fixed total for the month: Microsoft revises this document in place, and it is currently at revision 831 (last revised 2026-07-25 00:29 UTC). The two Critical lines above are kept separate for the same reason — the third-party total moves with Microsoft’s CNA scope, not with the size of Patch Tuesday.
Confirmed in CISA KEV and flagged as exploited by Microsoft. Treat as active incidents, not routine patching.
in CISA KEV (added 2026-07-22); network / no-auth / no-interaction; MSRC: exploitation more likely; ⬆ HCL: flagged dangerous. Owner routes to the SharePoint owners team.
in CISA KEV (added 2026-07-16); MSRC Exploited; network / no-auth / no-interaction. Owner routes to the SharePoint owners team.
in CISA KEV (added 2026-07-14); MSRC Exploited. Owner routes to the Identity / AD team.
in CISA KEV (added 2026-07-14); MSRC Exploited; network / no-auth / no-interaction; ⬆ HCL: flagged dangerous. Owner routes to the SharePoint owners team.
Publicly disclosed but not yet observed in the wild — a zero-day on a countdown. Schedule ahead of the normal cycle.
publicly disclosed (zero-day); ⬆ HCL: flagged dangerous. Owner routes to the Endpoints / Windows client team.
This month's priority items grouped by the team that patches them.
Ordered by a composite priority that weights active exploitation and disclosure above raw CVSS. Showing the sharp end; the full ranked set of 1,415 CVEs is in the index.
| CVE | Status | CVSS | Impact | Owner |
|---|---|---|---|---|
| CVE-2026-50522 | Exploited | 9.8 | Remote Code Execution | SharePoint owners |
| CVE-2026-58644 | Exploited | 9.8 | Remote Code Execution | SharePoint owners |
| CVE-2026-56155 | Exploited | 7.8 | Elevation of Privilege | Identity / AD |
| CVE-2026-56164 | Exploited | 5.3 | Elevation of Privilege | SharePoint owners |
| CVE-2026-50661 | Zero-day | 6.1 | Security Feature Bypass | Endpoints / Windows client |
| CVE-2026-56163 | Critical | 10.0 | Elevation of Privilege | Cloud / M365 apps |
| CVE-2026-56191 | Critical | 10.0 | Tampering | Exchange / mail |
| CVE-2026-57106 | Critical | 10.0 | Elevation of Privilege | Other / general Windows |
| CVE-2026-62825 | Critical | 10.0 | Elevation of Privilege | Cloud / M365 apps |
| CVE-2026-58630 | Critical | 10.0 | Elevation of Privilege | Cloud / M365 apps |
| CVE-2026-58275 | Critical | 10.0 | Elevation of Privilege | Network / infra servers |
| CVE-2026-45499 | Critical | 9.9 | Elevation of Privilege | Cloud / M365 apps |
| CVE-2026-57100 | Critical | 9.9 | Elevation of Privilege | Other / general Windows |
| CVE-2026-54120 | Critical | 9.9 | Remote Code Execution | Other / general Windows |
| CVE-2026-57092 | Critical | 9.9 | Elevation of Privilege | Virtualization / Hyper-V |
Plus further Critical-severity items this cycle — browse and filter them all in the index.
The items on the sharp end, with attack profile and cross-source context.
↑ Corroborated — HCL BigFix field analysts independently flagged this item in their published briefing.
↑ Corroborated — HCL BigFix field analysts independently flagged this item in their published briefing.
↑ Corroborated — HCL BigFix field analysts independently flagged this item in their published briefing.
↑ Corroborated — HCL BigFix field analysts independently flagged this item in their published briefing.
↑ Corroborated — Automox independently flagged this item in their published briefing.
Authoritative counts and exploitation flags come from Microsoft's MSRC Security Update Guide and CISA's Known Exploited Vulnerabilities catalog. Independent reporting and analyst commentary corroborate and add context but do not set priority.
Ranking is a composite score that weights active exploitation and public disclosure above raw CVSS, adjusted for network-reachable / no-authentication attack profiles and field-analyst judgment — which is why a low-CVSS vulnerability under active attack can outrank an unexploited 9.8.