Windows Shell Security Feature Bypass
- Severity
- Important · CVSS 8.8 · Security Feature Bypass
- Profile
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
- Why now
- in CISA KEV (added 2026-10-13); MSRC Exploited; ⬆ HCL: flagged dangerous
Microsoft shipped 1415 fixes this month, 77 of them rated Critical. A further 345 entries in the same document are third-party CVEs Microsoft republishes or Edge/Chromium updates, carrying 97 Critical — counted separately here, because that total tracks Microsoft's role as a CNA rather than the size of Patch Tuesday. 1 is already under active attack and should be patched today; 2 publicly disclosed zero-days should be closed this week. Everything else fits the normal monthly cycle.
Mid-month checkpoint. First published 2026-10-13 19:41 UTC (MSRC revision 555); updated 2026-10-14 18:13 UTC against MSRC revision 679 and the current CISA KEV catalog. Sources were fetched again at update time; see Sources below.
As of 2026-10-14 18:13 UTC, this cycle’s MSRC document lists 1,760 CVEs — 1,415 Microsoft-authored, plus 0 Edge/Chromium and 345 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 679 (last revised 2026-10-14 07:00 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 2026-10-13); MSRC Exploited; ⬆ HCL: flagged dangerous. Owner routes to the Other / general Windows 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). Owner routes to the Other / general Windows team.
publicly disclosed (zero-day); network / no-auth / no-interaction. Owner routes to the Other / general Windows 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 1,760 CVEs is in the index.
| CVE | Status | CVSS | Impact | Owner |
|---|---|---|---|---|
| CVE-2026-96951 | Exploited | 8.8 | Security Feature Bypass | Other / general Windows |
| CVE-2026-108398 | Zero-day | 8.8 | Security Feature Bypass | Other / general Windows |
| CVE-2026-92707 | Zero-day | 5.3 | Denial of Service | Other / general Windows |
| CVE-2026-96207 | Critical | 10.0 | Elevation of Privilege | Other / general Windows |
| CVE-2026-94510 | Critical | 9.9 | Elevation of Privilege | Other / general Windows |
| CVE-2026-100202 | Critical | 9.8 | Remote Code Execution | Other / general Windows |
| CVE-2026-100219 | Critical | 9.8 | Remote Code Execution | Other / general Windows |
| CVE-2026-105016 | Critical | 9.8 | Remote Code Execution | Other / general Windows |
| CVE-2026-21413 | Critical | 9.8 | Remote Code Execution | Other / general Windows |
| CVE-2026-70147 | Critical | 9.8 | Remote Code Execution | Endpoints / Windows client |
| CVE-2026-70153 | Critical | 9.8 | Remote Code Execution | Endpoints / Windows client |
| CVE-2026-70242 | Critical | 9.8 | Remote Code Execution | Office / productivity |
| CVE-2026-70291 | Critical | 9.8 | Remote Code Execution | Office / productivity |
| CVE-2026-77900 | Critical | 9.8 | Remote Code Execution | Cloud / M365 apps |
| CVE-2026-88131 | Critical | 9.8 | Remote Code Execution | Other / general Windows |
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.
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.