Microsoft September 2026 Patch Tuesday Fixes 973 Vulnerabilities and 2 Exploited Zero-Days
Microsoft's September 2026 Patch Tuesday fixes 973 vulnerabilities, including two zero-days already exploited in the wild.
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CVE-2026-83986
- CVSS 3.1
- 7.8 high
- EPSS
- <1%p24
- Published
- ·
- Modified
Description · NVD
Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.
- Vendors
- microsoft
- Products
- windows 10 1607, windows 10 1809, windows 10 21h2, windows 10 22h2, windows 11 23h2, windows 11 24h2, windows 11 25h2, windows 11 26h1, windows server 2016, windows server 2019, windows server 2022, windows server 2025
- Weakness
- CWE-122
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H