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CVE-2021-33771

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Selected cve

CVE-2021-33771

Windows Kernel Elevation of Privilege Vulnerability

33 retained evidence references · snapshot-bound · open authoritative view

StateSource-scoped evidence

Priority65.9–78.4

Coverage85.0%

Connections31

Choose an action.

Evidence state

identity unresolved
known present
source constrained
evidence unknown

Snapshot-bound reason tuple

Last verified source snapshot retainedfactor_a_kev

The admitted source contract constrains coverage for this claim.

Revision: evidence-policy-v1.1.0
Cutoff: 2026-10-22T18:07:53.945Z
Resolution: Review source contract

Evidence supportedfactor_b_epss

Eligible evidence is present for this bounded claim.

Revision: evidence-policy-v1.1.0
Cutoff: 2026-10-22T18:07:53.945Z
Resolution: None

Evidence supportedfactor_c_cvss

Eligible evidence is present for this bounded claim.

Revision: casca-direct-cvss-eligibility-v1
Cutoff: 2026-10-22T18:07:53.945Z
Resolution: None

Source-reported scopefactor_d_breadth

The source assertion is retained, but its canonical identity is unresolved.

Revision: casca-factor-d-obligations-v1
Cutoff: 2026-10-22T18:07:53.945Z
Resolution: Resolve identity

Connections 31

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows 10 Version 20H2

0d059b4a-deb6-42b6-b6af-c82f395805c3

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows Server version 2004

be8af101-617e-4217-bfb3-11df4af11e52

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows 10 Version 21H1

19863eef-f6e5-4d2f-b2be-4a89f96da171

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows Server 2016

495f0f4d-3550-478a-af83-1ca0a17bc2e2

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows 8.1

11b8dad8-02aa-44d0-ad4b-329ed94cf6a5

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows 10 Version 2004

add52939-32e0-4666-ba3d-c6ce2dea3fd4

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows Server version 20H2

1a1139b7-3468-4a97-82a6-bf72b0686c09

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows Server 2016 (Server Core installation)

fe48f4e1-7691-4e27-8fe3-0d7d2fe563a4

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows Server 2012 R2 (Server Core installation)

8a02d15d-3854-401a-9d3c-3915d5feab40

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows 10 Version 1909

156de282-294c-458b-b96e-61d7da2d99d1

has cited scope2 retained · stored CVE-2021-33771 → Microsoft · Windows 10 Version 1809

42ad5740-c1b8-4450-acb8-f9ec5a3b3579756fa7ea-0f4c-46c2-9c1b-1fefac57b580

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows 10 Version 1507

147df16f-ce67-4ac8-b4ed-74126f5414a0

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows Server 2019

3ab61755-84fa-4a9b-8bc8-d8fc161fabca

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows 10 Version 1607

fddc3500-279c-4a04-9b59-d14a75be63fc

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows Server 2012 R2

ccc9bdef-a122-4d25-9e24-005046512f87

has cited scope1 retained · stored CVE-2021-33771 → Microsoft · Windows Server 2019 (Server Core installation)

9190304f-8902-428c-a85e-8b2e53a5fb7c

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_server_2016

48130cfb-15d1-4e06-8929-8dba3fcd2fdb

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_rt_8.1

142b55f3-f918-49b1-9593-3a4c503685ca

has vulnerable target scope2 retained · stored CVE-2021-33771 → microsoft · windows_server_2008

366015e1-7870-44a4-b4ec-4311a1b5e764ad40e54f-c7eb-4cfe-a7cc-44c0a7c2a703

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_server_2019

c319a54c-0df4-4c11-8d43-abaf2cb7f521

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_server_20h2

63aac3e3-9e9a-4667-b01d-d17794bf23f3

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_10_20h2

5560f7db-75ee-4c56-a981-f2d0b7d1e8c0

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_server_2004

78e665f2-4385-4712-9a43-5e90811fa7e3

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_server_2012

aa49794d-2c98-4af8-8d5a-f716ba702a27

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_10_1607

f7d3158a-6fe1-4676-b55e-573eb1be066b

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_8.1

8afd6486-47c6-4ec6-bf94-b7d52c162637

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_10_1507

6b11f50e-a79d-42fe-bf62-babced7d4a43

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_10_2004

728daaf8-aaa0-4a4d-aba7-060acf646620

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_10_1809

6b678127-4d36-455b-9949-7fc3b895a672

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_10_21h1

52c9d01c-d416-4b99-940e-29c493b770f6

has vulnerable target scope1 retained · stored CVE-2021-33771 → microsoft · windows_10_1909

cfd9b1ed-ba54-4533-b3da-9a387a359adc

Focused snapshot evidence neighborhood.

CVEProductSignalSelected / traceVisual proximity carries zero evidence weight.

Data as of

Evidence current through Oct 22, 2026, 6:07 PM UTC · 32 entities · 31 relationships · bounded complete