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CVE-2026-21510

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Selected cve

CVE-2026-21510

Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.

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

StateSource-scoped evidence

Priority78.8–84.7

Coverage92.7%

Connections35

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 35

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows Server 2022

f6ff96c8-8756-4690-85e3-98b1bae3e350

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)

62cc5083-27a3-440b-9d6a-ed6b000cccfc

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows 11 Version 24H2

e25c3c2b-8757-4ac2-9348-367e9bdaf5aa

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows 11 version 22H3

c1e42c3b-2d81-4b36-a62c-cef1215cd97f

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows 11 Version 23H2

4462b1fa-7b73-4073-a4e9-bb0f8c489adf

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows Server 2016

de7ab188-07fc-4ab3-a350-e5bedc8bcbc5

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows 11 Version 26H1

2da3d55c-a362-4c25-9d6b-b588f5cfe0f5

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows Server 2012

f39e7cd3-26e9-48e1-8ca5-1d6985b83732

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows Server 2025 (Server Core installation)

5e8da921-0766-406d-a0bb-ad586be2e31f

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows Server 2012 (Server Core installation)

bff0767b-625b-4ecf-a392-d4f47a7f2d05

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows Server 2016 (Server Core installation)

78d1b3f6-b564-4735-a47c-b6a33aae65f2

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows Server 2012 R2 (Server Core installation)

da1cb2db-96df-4234-9a75-f5a3d1139225

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows 11 version 26H1

8dbaa670-0931-40d6-9be6-dc935dca53fe

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows 10 Version 1809

a14ef4cc-9053-4ebc-8462-8a3e51be7f60

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows Server 2025

63727d16-485d-4a38-90f2-e4a6f8cb1a1f

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows 10 Version 22H2

f7c5eaaa-661e-40f7-ad16-4d3bc10612eb

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows 10 Version 21H2

40ae7bac-0e70-4c4c-b708-930155c463b6

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows Server 2019

57ec9403-d3b4-41db-a6d1-ce1272b25ae0

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows 10 Version 1607

34016bcc-3168-4868-adbc-9a7a96d678c4

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows Server 2012 R2

0e1eab1d-d3a6-4098-b180-77a599ed3c2a

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows Server 2019 (Server Core installation)

15ae0549-c7a5-4139-8be1-b755ae1aaf45

has cited scope1 retained · stored CVE-2026-21510 → Microsoft · Windows 11 Version 25H2

325b78c2-4254-4006-8959-c0b15e98ee1e

has vulnerable target scope2 retained · stored CVE-2026-21510 → microsoft · windows_11_23h2

71a50ee3-e260-40db-9803-68717b4a5a62e71a90d5-04c1-4eab-aff6-7b493743896c

has vulnerable target scope1 retained · stored CVE-2026-21510 → microsoft · windows_server_2016

736b3b5e-325f-4775-be4a-03addbc0452f

has vulnerable target scope1 retained · stored CVE-2026-21510 → microsoft · windows_server_2019

548a3e21-8340-414c-877d-ad8643be105d

has vulnerable target scope1 retained · stored CVE-2026-21510 → microsoft · windows_server_2025

fc00570b-b3e1-440f-8c86-994427a1afe6

has vulnerable target scope2 retained · stored CVE-2026-21510 → microsoft · windows_server_2012

4ca719d8-8255-425b-94e3-adf546bfcc1f8a832cda-50a2-4d35-8f26-47de9c6f059b

has vulnerable target scope2 retained · stored CVE-2026-21510 → microsoft · windows_10_1607

7a8f67a9-4327-4e31-a150-629d27280b24f8c97f5f-4f67-4145-a9b4-080fb934a558

has vulnerable target scope2 retained · stored CVE-2026-21510 → microsoft · windows_11_24h2

7639db9a-4bf2-4d10-abb4-290936eead06a138974b-22da-4ac9-9a0e-e045d04136f2

has vulnerable target scope2 retained · stored CVE-2026-21510 → microsoft · windows_10_1809

2f505830-a414-4375-9fa2-0bd144ca13957c149794-059c-4c85-a367-294abc7f9da7

has vulnerable target scope3 retained · stored CVE-2026-21510 → microsoft · windows_10_22h2

9d072f8f-c1bc-4261-99f7-841a5e821903be39093a-202c-4b53-ac00-3700e78ad793fadc6d84-1a8c-492b-8005-579d8cf56e94

has vulnerable target scope1 retained · stored CVE-2026-21510 → microsoft · windows_server_2022_23h2

1ed6cb95-0495-44b5-94f4-54b645337bcc

has vulnerable target scope1 retained · stored CVE-2026-21510 → microsoft · windows_server_2022

1b09c8ca-6e15-4fcf-9b6f-c5a224829993

has vulnerable target scope2 retained · stored CVE-2026-21510 → microsoft · windows_11_25h2

02c6971e-5848-4ba7-a875-a09c916f904e8f96cf1f-c081-47d1-a4ce-b158a6cb0679

has vulnerable target scope3 retained · stored CVE-2026-21510 → microsoft · windows_10_21h2

2fae2388-d0b6-4778-836c-778560b5b5e867deecf9-1e4c-40b4-ae26-07ae05f17786d3d5de17-c139-4f01-a540-c8045740c664

Focused snapshot evidence neighborhood.

CVEProductSignalSelected / traceVisual proximity carries zero evidence weight.

Data as of

Evidence current through Oct 22, 2026, 6:07 PM UTC · 36 entities · 35 relationships · bounded complete