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CVE-2021-36934: Microsoft Windows

EPSS67.2%No. 750 of 1739 in KEV
CVE year2021~1 yrs before listing
Same vendor in KEV389
Same product174
FieldValue
VendorMicrosoft
ProductWindows
NameMicrosoft Windows SAM Local Privilege Escalation Vulnerability
Added to KEV2022-02-10
US federal due date2022-02-24
Ransomware useUnknown
CWECWE-1220

CISA description

If a Volume Shadow Copy (VSS) shadow copy of the system drive is available, users can read the SAM file which would allow any user to escalate privileges to SYSTEM level.

Other entries for this product

CVEVendor / productAddedEPSSRansomware
CVE-2026-85880Microsoft Windows2026-09-083.6%Unknown
CVE-2026-81963Microsoft Windows2026-09-080.3%Unknown
CVE-2008-4250Microsoft Windows2026-05-2098.7%Unknown
CVE-2026-32202Microsoft Windows2026-04-284.9%Unknown
CVE-2025-60710Microsoft Windows2026-04-134.5%Known
CVE-2023-36424Microsoft Windows2026-04-1312.1%Unknown
CVE-2008-0015Microsoft Windows2026-02-1776.5%Unknown
CVE-2026-21533Microsoft Windows2026-02-104.1%Unknown
CVE-2026-21525Microsoft Windows2026-02-104.8%Unknown
CVE-2026-21519Microsoft Windows2026-02-102.4%Unknown
CVE-2026-21513Microsoft Windows2026-02-1015.8%Unknown
CVE-2026-21510Microsoft Windows2026-02-1024.5%Unknown
CVE-2026-20805Microsoft Windows2026-01-137.2%Unknown
CVE-2025-62221Microsoft Windows2025-12-092.5%Unknown
CVE-2025-62215Microsoft Windows2025-11-125.9%Unknown

NVD — CVE-2021-36934

Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page

A Microsoft Windows vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2022-02-10.