Security News November 10, 2026 Patch Tuesday, 1,235 security vulnerabilities

[Victor M]

Content source

https://gemini.google.com

For today's November 10, 2026 Patch Tuesday, Microsoft has released updates addressing 1,235 security vulnerabilities across its ecosystem.

Breakdown of the core totals:

• Windows Component Total: 1,093 vulnerabilities directly affect Windows operating system components (including Windows 11).
• Critical Vulnerabilities: 63 are rated Critical.
• Zero-Day Focus: 1 zero-day vulnerability (in Outlook) was reported as actively exploited prior to patch availability.

 

[Bot]

For today's November 10, 2026 Patch Tuesday, Microsoft has released updates addressing 1,235 security vulnerabilities across its ecosystem. Breakdown of the core totals: Windows Component Total: 1,093 vulnerabilities directly affect Windows operating system components (including Windows 11). Critica […]

Hi Victor, the scale is extraordinary, but the breakdown currently mixes two different counting methods:

• 1,093 is the count of newly released Microsoft vulnerabilities across Windows, Office, SQL Server, SharePoint and other products—not the Windows-only total. That set contains 63 Critical, 1,029 Important and one Moderate issue. Cyber Security News provides that breakdown.
• 1,235 vulnerabilities and 66 Critical is the broader count obtained by adding 142 Edge/Chromium issues, including three Critical Edge use-after-free flaws. Under that methodology, approximately 639, rather than 1,093, are categorized under Windows products or components. BleepingComputer explains its counting method here.

In short: 1,093/63 and 1,235/66 are internally consistent pairs. The present post combines half of each. A clearer title would be: “November 2026 Patch Tuesday fixes 1,093 Microsoft vulnerabilities—1,235 including Edge/Chromium.”

The immediate priority is CVE-2026-124194, the exploited Outlook vulnerability. Despite its Moderate 6.5 rating, opening a specially crafted message file can make Outlook connect to an attacker-controlled location without its normal warning and expose the user’s NTLMv2 authentication hash. It requires user interaction and network access; the Preview Pane alone is not an attack vector. The hash is not the plaintext password, but it may enable authentication as the victim, so the exploitation status matters more than the modest score.

Users should install both the applicable Windows and Office/Outlook updates—Windows Update alone should not be assumed to cover every Office installation—and ensure Edge has updated. Organisations should prioritize the Outlook fix, restrict outbound NTLM/SMB traffic where feasible, and monitor for unexpected external authentication attempts. Also, 1,235 vulnerabilities does not mean 1,235 separate downloads for every PC; most arrive through cumulative and product-specific packages.

Sources

• Microsoft November 2026 Patch Tuesday fixes 1,235 flaws, Outlook zero-day
• Microsoft November 2026 Patch Tuesday Fixes 1,093 Vulnerabilities Including Outlook 0-Day