Evidence dossier

CVE-2025-21391

Windows Storage Elevation of Privilege Vulnerability

Exploited in the wild (CISA KEV since Feb 11, 2025). microsoft reports CVSS 3.1 7.1. EPSS estimates 2.3% exploit likelihood as of Aug 27, 2026.

67.6–73.0Priority evidence range

Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

Windows Storage Elevation of Privilege Vulnerability

State: PUBLISHED
Published: Feb 11, 2025
Updated: Feb 26, 2026
Evidence coverage: 92%

Evidence chronology

What was known when

Download this view's receipt →

Source dateSource date omittedFirst observed by CASCAJul 19, 2026
CISA-ADP
Record text: CISA ADP Vulnrichment
Inspect raw assertion
Field
container
Value
CISA ADP Vulnrichment
Original evidence ↗
Source dateSource date omittedFirst observed by CASCAJul 19, 2026
microsoft
Record text: Windows Storage Elevation of Privilege Vulnerability
Inspect raw assertion
Field
container
Value
Windows Storage Elevation of Privilege Vulnerability
Original evidence ↗
Source dateJul 16, 2026First observed by CASCAJul 19, 2026
CISA KEV
Exploitation cataloged: Microsoft Windows Storage Link Following Vulnerability
Inspect raw assertion
Field
observed_exploitation
Value
Microsoft Windows Storage Link Following Vulnerability
Original evidence ↗
Source dateAug 27, 2026First observed by CASCAAug 27, 2026
FIRST EPSS
EPSS score: 2.26% probability · 81.69th percentile
Inspect raw assertion
Field
model_probability
Value
Probability 0.022580000000; percentile 0.816900000000
Original evidence ↗

ExploitationCatalog member

CISA KEV · catalog date Feb 11, 2025 · first observed Jul 19, 2026

Exploit likelihood2.26%

FIRST EPSS · score date Aug 27, 2026 · 81.7th percentile · first observed Aug 27, 2026

SeverityCVSS 7.1

microsoft · CVSS 3.1 · first observed Jul 19, 2026 · same-version scores align in this snapshot

Evidence detail

Source limits and decisions

Why each evidence state has this value

casca-unknown-reasons-v1

Exploitation statusEvidence supported

Eligible evidence is present for this bounded claim.

Revision: evidence-policy-v1.1.0
Cutoff: Aug 27, 2026
Resolution: None

Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision: evidence-policy-v1.1.0
Cutoff: Aug 27, 2026
Resolution: None

Severity assessmentEvidence supported

Eligible evidence is present for this bounded claim.

Revision: casca-direct-cvss-eligibility-v1
Cutoff: Aug 27, 2026
Resolution: None

Affected productsSource-reported scope

The cited source assertion is retained while canonical product linkage remains open.

Revision: casca-factor-d-obligations-v1
Cutoff: Aug 27, 2026
Resolution: Resolve identity

Source comparison

Who said what

CISA-ADPIndependent enrichment

Record text

CISA ADP Vulnrichment

Inspect raw assertion

Field: container
Value: CISA ADP Vulnrichment

Source dateSource date omittedFirst observed by CASCAJul 19, 2026Original evidence ↗

microsoftOriginal assertion

Record text

Windows Storage Elevation of Privilege Vulnerability

Inspect raw assertion

Field: container
Value: Windows Storage Elevation of Privilege Vulnerability

Source dateSource date omittedFirst observed by CASCAJul 19, 2026Original evidence ↗

CISA KEVOriginal assertion

Exploitation cataloged

Microsoft Windows Storage Link Following Vulnerability

Inspect raw assertion

Field: observed_exploitation
Value: Microsoft Windows Storage Link Following Vulnerability

Source dateJul 16, 2026First observed by CASCAJul 19, 2026Original evidence ↗

FIRST EPSSOriginal assertion

EPSS score

2.26% probability · 81.69th percentile

Inspect raw assertion

Field: model_probability
Value: Probability 0.022580000000; percentile 0.816900000000

Source dateAug 27, 2026First observed by CASCAAug 27, 2026Original evidence ↗

Applicability

Cited product scope

Trace impact →

16Underlying assertions

13Canonical products

16Target assertions

0Constraint assertions

Grouped from 1 configuration nodes in this exact snapshot. Visual grouping is navigational; asset exposure and root cause require cited evidence.

Identity source boundaries

Cpe dictionary1,775,266 records · observed through 2026-07-21T06:45:29.809Z27d65b0f-b718-4b4f-bb79-c47c68d09dfa
Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z955dae73-7302-438b-aee1-058d7cc5d48e

Search scopeRoleOfficial link state

30 scope groups

microsoft · source assertedMicrosoftWindows 10 Version 1507Direct source scope

Affected: 10.0.10240.0 to before 10.0.10240.20915 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.10240.0", "lessThan": "10.0.10240.20915", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1607Direct source scope

Affected: 10.0.14393.0 to before 10.0.14393.7785 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.14393.0", "lessThan": "10.0.14393.7785", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1809Direct source scope

Affected: 10.0.17763.0 to before 10.0.17763.6893 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.17763.0", "lessThan": "10.0.17763.6893", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 21H2Direct source scope

Affected: 10.0.19044.0 to before 10.0.19044.5487 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.19044.0", "lessThan": "10.0.19044.5487", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 22H2Direct source scope

Affected: 10.0.19045.0 to before 10.0.19045.5487 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.19045.0", "lessThan": "10.0.19045.5487", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 11 version 22H2Direct source scope

Affected: 10.0.22621.0 to before 10.0.22621.4890 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.22621.0", "lessThan": "10.0.22621.4890", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 11 version 22H3Direct source scope

Affected: 10.0.22631.0 to before 10.0.22631.4890 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.22631.0", "lessThan": "10.0.22631.4890", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 11 Version 23H2Direct source scope

Affected: 10.0.22631.0 to before 10.0.22631.4890 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.22631.0", "lessThan": "10.0.22631.4890", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 11 Version 24H2Direct source scope

Affected: 10.0.26100.0 to before 10.0.26100.3194 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.26100.0", "lessThan": "10.0.26100.3194", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server 2016Direct source scope

Affected: 10.0.14393.0 to before 10.0.14393.7785 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.14393.0", "lessThan": "10.0.14393.7785", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server 2016 (Server Core installation)Direct source scope

Affected: 10.0.14393.0 to before 10.0.14393.7785 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.14393.0", "lessThan": "10.0.14393.7785", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server 2019Direct source scope

Affected: 10.0.17763.0 to before 10.0.17763.6893 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.17763.0", "lessThan": "10.0.17763.6893", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server 2019 (Server Core installation)Direct source scope

Affected: 10.0.17763.0 to before 10.0.17763.6893 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.17763.0", "lessThan": "10.0.17763.6893", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server 2022Direct source scope

Affected: 10.0.20348.0 to before 10.0.20348.3207 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.20348.0", "lessThan": "10.0.20348.3207", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)Direct source scope

Affected: 10.0.25398.0 to before 10.0.25398.1425 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.25398.0", "lessThan": "10.0.25398.1425", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server 2025Direct source scope

Affected: 10.0.26100.0 to before 10.0.26100.3194 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.26100.0", "lessThan": "10.0.26100.3194", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server 2025 (Server Core installation)Direct source scope

Affected: 10.0.26100.0 to before 10.0.26100.3194 (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.26100.0", "lessThan": "10.0.26100.3194", "versionType": "custom"}]

NVD CPE · OPERATING SYSTEMmicrosoftwindows_10_1507Vulnerable target · 2 assertions

Any version (unconstrained) (< 10.0.10240.20915)Canonical identity product-9851bd571b8ab08bca589cd73710badfef557d036f0fb7707f694f1c9f597cb4Linked exact

Scope supported

Inspect raw assertions

cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 0
Logic
OR
Version bounds
through excluding 10.0.10240.20915
Match ID
8b692d57-d1f5-440e-ac28-c7633740ed6e
cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 1
Logic
OR
Version bounds
through excluding 10.0.10240.20915
Match ID
44723f8c-6b56-4a27-b213-e822adc16078

NVD CPE · OPERATING SYSTEMmicrosoftwindows_10_1607Vulnerable target · 2 assertions

Any version (unconstrained) (< 10.0.14393.7785)Canonical identity product-740fec3e9838b5eabe76ebe27e4d0d7a4cb2e0ef7e13923300d3d0b51e3fce1cLinked exact

Scope supported

Inspect raw assertions

cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 2
Logic
OR
Version bounds
through excluding 10.0.14393.7785
Match ID
c91c224c-5cc9-42ef-8053-ac80ee2cc2b5
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 3
Logic
OR
Version bounds
through excluding 10.0.14393.7785
Match ID
07421d08-3f88-4532-b652-36825784eff9

NVD CPE · OPERATING SYSTEMmicrosoftwindows_10_1809Vulnerable target · 2 assertions

Any version (unconstrained) (< 10.0.17763.6893)Canonical identity product-a3084138383423221f61594e86f5b295e5e254acd7ae5284f45e0877a084db43Linked exact

Scope supported

Inspect raw assertions

cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 4
Logic
OR
Version bounds
through excluding 10.0.17763.6893
Match ID
b5bc47f5-150e-4d18-8cc4-356f22171d81
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 5
Logic
OR
Version bounds
through excluding 10.0.17763.6893
Match ID
e448ecb4-ce46-4a29-a092-5a4d334e5535

NVD CPE · OPERATING SYSTEMmicrosoftwindows_10_21h2Vulnerable target · 1 assertions

Any version (unconstrained) (< 10.0.19044.5487)Canonical identity product-ec10c9f400f23fdf118887f60fe116ffde4adb76dcf118cdd3a7556fd033da3bLinked exact

Scope supported

Inspect raw assertion

cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 6
Logic
OR
Version bounds
through excluding 10.0.19044.5487
Match ID
a932cba3-651f-4bba-968a-2d6ca7df8506

NVD CPE · OPERATING SYSTEMmicrosoftwindows_10_22h2Vulnerable target · 1 assertions

Any version (unconstrained) (< 10.0.19045.5487)Canonical identity product-a6295b9daad3ca57ce70751badba5b7fe99229c8a562cc7400e8cfef3daccaeeLinked exact

Scope supported

Inspect raw assertion

cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 7
Logic
OR
Version bounds
through excluding 10.0.19045.5487
Match ID
810c8ecb-619f-447c-b352-e66f7ef5216e

NVD CPE · OPERATING SYSTEMmicrosoftwindows_11_22h2Vulnerable target · 1 assertions

Any version (unconstrained) (< 10.0.22621.4890)Canonical identity product-f8c509b6ec25f2a4338a23556be321da5a7c3e8da9f1a4c52f7f15dd0e9a0d2aLinked exact

Scope supported

Inspect raw assertion

cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 8
Logic
OR
Version bounds
through excluding 10.0.22621.4890
Match ID
30af7170-5722-4c9c-a8ad-7a9f0c5952ee

NVD CPE · OPERATING SYSTEMmicrosoftwindows_11_23h2Vulnerable target · 1 assertions

Any version (unconstrained) (< 10.0.22631.4890)Canonical identity product-026201767813843a6d53867bacde4a55c3035cb868c0a72434012c5e30dab148Linked exact

Scope supported

Inspect raw assertion

cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 9
Logic
OR
Version bounds
through excluding 10.0.22631.4890
Match ID
62ffd367-fb8b-48ca-813f-760e4f393555

NVD CPE · OPERATING SYSTEMmicrosoftwindows_11_24h2Vulnerable target · 1 assertions

Any version (unconstrained) (< 10.0.26100.3107)Canonical identity product-8665879a2f5fe8b8eab868c43d6ace340b95d1f3879639d97ebdf60ef7b49b5fLinked exact

Scope supported

Inspect raw assertion

cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 10
Logic
OR
Version bounds
through excluding 10.0.26100.3107
Match ID
9fd60a47-7402-461d-84c4-61e77764df16

Affected-product evidence

Accepted scope and product mapping

13 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-026201767813843a6d53867bacde4a55c3035cb868c0a72434012c5e30dab148

Source class: Nvd cpe vulnerable target
Assertions: 1
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

9e52dd05-ced3-4a1f-af74-e30e3ec3948b

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-02e254d111ce604757a15650ef469f4f8365d6247da82ce3ac2695c3cfc7dc5f

Source class: Nvd cpe vulnerable target
Assertions: 1
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

bc24fdec-68b7-4346-a667-d823f8adbdad

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-25a2932c0bbcb648f7e391c8b9d34c734e5085444c03c1c206b9d4c4baa80b25

Source class: Nvd cpe vulnerable target
Assertions: 1
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

c8a07d10-d148-4da2-b817-18aac5cc928f

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-3fe7da0d567cbba9da3f09deea827ccacd90ac3643fc3e1622f75fb001f24443

Source class: Nvd cpe vulnerable target
Assertions: 1
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

2ce7bde3-180e-4690-ba82-f2a30fe787e1

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-740fec3e9838b5eabe76ebe27e4d0d7a4cb2e0ef7e13923300d3d0b51e3fce1c

Source class: Nvd cpe vulnerable target
Assertions: 2
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

4fb38d39-1402-44ac-bfa0-5566c6db0539d4e38d8c-bb1d-4734-94c7-3e77c1ee178a

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-8665879a2f5fe8b8eab868c43d6ace340b95d1f3879639d97ebdf60ef7b49b5f

Source class: Nvd cpe vulnerable target
Assertions: 1
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

6aa74d45-c47b-4296-bfc8-81ee3a212a64

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-9851bd571b8ab08bca589cd73710badfef557d036f0fb7707f694f1c9f597cb4

Source class: Nvd cpe vulnerable target
Assertions: 2
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

bcffb400-b3dc-4b67-a0fb-3dce5a364a91ebaf9ff7-4691-407b-b028-9d0721a8968a

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-a3084138383423221f61594e86f5b295e5e254acd7ae5284f45e0877a084db43

Source class: Nvd cpe vulnerable target
Assertions: 2
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

0ebe13ca-87a9-4731-b8b8-cf8e754c525ca703e1cd-7d69-4fd0-ab49-4259bd1ffea2

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-a6295b9daad3ca57ce70751badba5b7fe99229c8a562cc7400e8cfef3daccaee

Source class: Nvd cpe vulnerable target
Assertions: 1
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

6fe78173-a689-4908-981a-548e2075ed2a

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-bc66b50eed682b3633d0f3a2914725d0a72d6d0d5fece14f566d91bc87448c0b

Source class: Nvd cpe vulnerable target
Assertions: 1
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

39888fc9-e8b5-4f63-9ac6-ce11819e1a49

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-d196d31962e613955a91e33e795c22dcfa7bf25173abebaca616a6350cce9ce1

Source class: Nvd cpe vulnerable target
Assertions: 1
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

53c87354-1db9-430f-b959-b87d0a19bbb7

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-ec10c9f400f23fdf118887f60fe116ffde4adb76dcf118cdd3a7556fd033da3b

Source class: Nvd cpe vulnerable target
Assertions: 1
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

a85e59cb-fa7f-4dcc-ace0-9818cb42ab7b

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-f8c509b6ec25f2a4338a23556be321da5a7c3e8da9f1a4c52f7f15dd0e9a0d2a

Source class: Nvd cpe vulnerable target
Assertions: 1
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

b84465d5-db39-4f40-8698-efae5629bc40

Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class: Direct cve affected
Assertions: 17
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

252702e4-0bfc-4e3f-b562-bb79ea3e466a27dd6079-f2f1-4a36-85a8-a4bedad4de4d45ace877-5e4b-43f2-8883-bc8de7de80d74c4d4e89-375e-4f07-9a6a-1c14c9d5e49d511fefd0-e01b-4548-a687-9c60903f3be671d3c78b-0e89-471d-89bc-acba667e2e5573617cdf-c87f-4ad4-b54f-ddc9c2ded0c175cd66d6-9f54-4a04-a2e9-9ec517c48e68763c5f1e-6cc1-4b09-a42c-128caaabd9f299135ac2-13c5-4ecc-bebf-6262eff0168ca05f9230-5023-412f-882a-954b1bd25fe9ba2522f7-b31a-4632-a58a-7914d8ffc9daba803bbc-b175-4674-89f4-f6aa60846c12bc8c7917-c584-4123-a2c5-59717bd49c9fd57323ac-f19c-4d23-8540-d493a7013992da57a8b2-ce8d-421d-beef-c41fe5ae81b0fef1fb10-8ef7-41af-989b-6b946ecc1328

Assessments

CVSS by origin

7.1

secure@microsoft.comCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

7.1

microsoftCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:F/RL:O/RC:C

Direct CVE/CNA normalized decisions

7.1Priority eligible

microsoft

CVSS 3.1 · Primary · Original assertion · rank 1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:F/RL:O/RC:C

Validation: Valid match
Recomputed: 7.1
Decision reason: Evidence supported
Policy: casca-direct-cvss-eligibility-v1

Assessments are retained side by side under closed precedence. Cascade never averages CVSS.

Evidence boundaries

KEV membership is authoritative for the catalog, not proof of exposure in any environment.
EPSS is a dated model probability and not an individual-environment prediction.
Affected or fixed status applies only to the exact cited product and version scope; remaining scope stays source-scoped.
NVD-carried upstream facts remain derivative; independent corroboration requires a separately authored source.
Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.
OSV aggregation and OSV-converted NVD material are not independent corroboration.
Red Hat facts are vendor assertions for the exact supplied products.
Nonmembership and not-yet-observed states are not proof of safety.