CISA KEV · catalog date Mar 28, 2022 · first observed Sep 1, 2026
Evidence dossier
CVE-2018-8405
An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory, aka "DirectX Graphics Kernel Elevation of…
Exploited in the wild (CISA KEV since Mar 28, 2022). NVD reports CVSS 3.1 7.8. EPSS estimates 3.4% exploit likelihood as of Oct 22, 2026.
As of Oct 22, 2026
Normalized restatement
An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory, aka "DirectX Graphics Kernel Elevation of Privilege Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8400, CVE-2018-8401, CVE-2018-8406.
- State
- PUBLISHED
- Published
- Aug 15, 2018
- Updated
- Oct 21, 2025
- Evidence coverage
- 95%
Evidence chronology
What was known when
- Source dateSource date omittedFirst observed by CASCACISA-ADPOriginal evidence ↗
Record text: CISA ADP Vulnrichment
Inspect raw assertion
- Field
container- Value
- CISA ADP Vulnrichment
- Source dateSource date omittedFirst observed by CASCACVE ProgramOriginal evidence ↗
Record text: CVE Program Container
Inspect raw assertion
- Field
container- Value
- CVE Program Container
- Source dateSource date omittedFirst observed by CASCAmicrosoftOriginal evidence ↗
Record text: An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory, aka "DirectX Graphics Kernel Elevation of Privilege Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8400, CVE-2018-8401, CVE-2018-8406.
Inspect raw assertion
- Field
container- Value
- An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory, aka "DirectX Graphics Kernel Elevation of Privilege Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8400, CVE-2018-8401, CVE-2018-8406.
- Source dateFirst observed by CASCACISA KEVOriginal evidence ↗
Exploitation cataloged: Microsoft DirectX Graphics Kernel Privilege Escalation Vulnerability
Inspect raw assertion
- Field
observed_exploitation- Value
- Microsoft DirectX Graphics Kernel Privilege Escalation Vulnerability
- Source dateFirst observed by CASCAFIRST EPSSOriginal evidence ↗
EPSS score: 3.44% probability · 88.93th percentile
Inspect raw assertion
- Field
model_probability- Value
- Probability 0.034440000000; percentile 0.889330000000
FIRST EPSS · score date Oct 22, 2026 · 88.9th percentile · first observed Oct 22, 2026
NVD · 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-v1The last verified source boundary remains in force for this claim.
- Revision
- evidence-policy-v1.1.0
- Cutoff
- Oct 22, 2026
- Resolution
- Review source contract
Eligible evidence is present for this bounded claim.
- Revision
- evidence-policy-v1.1.0
- Cutoff
- Oct 22, 2026
- Resolution
- None
Eligible evidence is present for this bounded claim.
- Revision
- casca-direct-cvss-eligibility-v1
- Cutoff
- Oct 22, 2026
- Resolution
- None
The cited source assertion is retained while canonical product linkage remains open.
- Revision
- casca-factor-d-obligations-v1
- Cutoff
- Oct 22, 2026
- Resolution
- Resolve identity
Source comparison
Who said what
CISA ADP Vulnrichment
Inspect raw assertion
- Field
container- Value
- CISA ADP Vulnrichment
CVE Program Container
Inspect raw assertion
- Field
container- Value
- CVE Program Container
An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory, aka "DirectX Graphics Kernel Elevation of Privilege Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8400, CVE-2018-8401, CVE-2018-8406.
Inspect raw assertion
- Field
container- Value
- An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory, aka "DirectX Graphics Kernel Elevation of Privilege Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8400, CVE-2018-8401, CVE-2018-8406.
Microsoft DirectX Graphics Kernel Privilege Escalation Vulnerability
Inspect raw assertion
- Field
observed_exploitation- Value
- Microsoft DirectX Graphics Kernel Privilege Escalation Vulnerability
3.44% probability · 88.93th percentile
Inspect raw assertion
- Field
model_probability- Value
- Probability 0.034440000000; percentile 0.889330000000
Applicability
Cited product scope
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 2026-07-21T06:45:29.809Z
27d65b0f-b718-4b4f-bb79-c47c68d09dfa - Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z
955dae73-7302-438b-aee1-058d7cc5d48e
17 scope groups
Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "32-bit Systems"}, {"status": "affected", "version": "Version 1607 for 32-bit Systems"}, {"status": "affected", "version": "Version 1607 for x64-based Systems"}, {"status": "affected", "version": "Version 1703 for 32-bit Systems"}, {"status": "affected", "version": "Version 1703 for x64-based Systems"}, {"status": "affected", "version": "Version 1709 for 32-bit Systems"}, {"status": "affected", "version": "Version 1709 for x64-based Systems"}, {"status": "affected", "version": "Version 1803 for 32-bit Systems"}, {"status": "affected", "version": "Version 1803 for x64-based Systems"}, {"status": "affected", "version": "x64-based Systems"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "version 1709 (Server Core Installation)"}, {"status": "affected", "version": "version 1803 (Server Core Installation)"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "32-bit systems"}, {"status": "affected", "version": "x64-based systems"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "Windows RT 8.1"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "(Server Core installation)"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "(Server Core installation)"}]product-9851bd571b8ab08bca589cd73710badfef557d036f0fb7707f694f1c9f597cb4Linked exactInspect 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
- No explicit bounds
- Match ID
a045ac0a-471e-444c-b3b0-4cabc23e8cfb
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
- No explicit bounds
- Match ID
28a7fee9-b473-48a0-b0ed-a5cc1e44194c
product-740fec3e9838b5eabe76ebe27e4d0d7a4cb2e0ef7e13923300d3d0b51e3fce1cLinked exactInspect 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
- No explicit bounds
- Match ID
5e491e46-1917-41fe-8f9a-bb0bddeb42c3
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
- No explicit bounds
- Match ID
0a1bc97a-263e-4291-8aef-02ee4e6031e9
product-2f3550a8fd2528ab6e756c5ea638f5f3dc368adee47ca6f01d64918c0b9eb2a5Linked exactInspect raw assertions
cpe:2.3:o:microsoft:windows_10_1703:-:*:*:*:*:*:x64:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 4
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
b98db3ff-cc3b-4e9f-a9cc-ec4c89af3b31
cpe:2.3:o:microsoft:windows_10_1703:-:*:*:*:*:*:x86:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 5
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
8733bf37-7bf2-409d-9452-da8a92da1124
product-d059dbfcd39652adfca6d48669484008cb5d4a8b33116c81ee002cd9101904afLinked exactInspect raw assertions
cpe:2.3:o:microsoft:windows_10_1709:-:*:*:*:*:*:x86:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 7
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
d76003fb-ee99-4d8e-b6a0-b13c2041e5a0
cpe:2.3:o:microsoft:windows_10_1709:-:*:*:*:*:*:x64:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 6
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
469f95d3-abbb-4f1a-a000-be0f6bd60ff6
product-5e821ea3746af154a469c180e78b9f4d663edf21461517987eed76740c7910c1Linked exactInspect raw assertions
cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:x64:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 8
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
d82f8af7-ed01-4649-849e-f248f0e02384
cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:x86:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 9
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
c1cfb53b-b17b-47bd-bac1-c6c5d168ffb6
product-7e46de82012029583622f69d79b86bc210b5bd25b8cb3bb4468936702b23c4b0Linked exactInspect raw assertion
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 10
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
e93068db-549b-45ab-8e5c-00eb5d8b5cf8
product-076c7e47c78d9425d54dea0b063ed7cd79e5f9f0bfdb3c9153b8aec4e71a7ad9Linked exactInspect raw assertion
cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 11
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
c6ce5198-c498-4672-af4c-77ab4be06c5c
product-ff9203e1d48a9425faa287000b301451cdbb2a9defda0e208f1ce06fd168da7dLinked exactInspect raw assertion
cpe:2.3:o:microsoft:windows_server_1709:-:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 12
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
53695559-6e95-43c1-ad7c-1d99473223c2
product-a74a0925fd770075058392e2bb7a5408e96a296354955527de213995d5070448Linked exactInspect raw assertion
cpe:2.3:o:microsoft:windows_server_1803:-:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 13
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
37097c39-d588-4018-b94d-5eb87b1e3d5a
product-5a80416e92fed0cddbb3d4f3840218b448dee11159824ad25a0353da566963feLinked exactInspect raw assertion
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 14
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
db18c4ce-5917-401e-acf7-2747084fd36e
product-02e254d111ce604757a15650ef469f4f8365d6247da82ce3ac2695c3cfc7dc5fLinked exactInspect raw assertion
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 15
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
041ff8ba-0b12-4a1f-b4bf-9c4f33b7c1e7
Affected-product evidence
Accepted scope and product mapping
11 canonical links · 1 source-reported links
vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-02e254d111ce604757a15650ef469f4f8365d6247da82ce3ac2695c3cfc7dc5f
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Oct 22, 2026
Retained assertion IDs
327dfa9d-12c9-40fe-8474-810fff53a00evendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-076c7e47c78d9425d54dea0b063ed7cd79e5f9f0bfdb3c9153b8aec4e71a7ad9
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Oct 22, 2026
Retained assertion IDs
99bbf772-0170-44da-a722-4f6779f10941vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-2f3550a8fd2528ab6e756c5ea638f5f3dc368adee47ca6f01d64918c0b9eb2a5
- Source class
- Nvd cpe vulnerable target
- Assertions
- 2
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Oct 22, 2026
Retained assertion IDs
2fa7a13a-e578-41e4-a80a-7c7021952abd5c0b6bd2-df0c-46f9-a397-7f2ed55339c6vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-5a80416e92fed0cddbb3d4f3840218b448dee11159824ad25a0353da566963fe
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Oct 22, 2026
Retained assertion IDs
a8c7a9fb-e821-418b-bfd5-362d744bfc58vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-5e821ea3746af154a469c180e78b9f4d663edf21461517987eed76740c7910c1
- Source class
- Nvd cpe vulnerable target
- Assertions
- 2
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Oct 22, 2026
Retained assertion IDs
151e61cc-1153-4d84-b47b-1607c5f3a389371c28b1-a7ce-4de2-b71d-7be86e904597vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-740fec3e9838b5eabe76ebe27e4d0d7a4cb2e0ef7e13923300d3d0b51e3fce1c
- Source class
- Nvd cpe vulnerable target
- Assertions
- 2
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Oct 22, 2026
Retained assertion IDs
07cc728e-4973-4ae9-828b-80c49b9f0115429d065e-5861-4ac1-acbd-b7b2494bc738vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-7e46de82012029583622f69d79b86bc210b5bd25b8cb3bb4468936702b23c4b0
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Oct 22, 2026
Retained assertion IDs
e6f96b79-eef6-457f-bb20-6e62f0b5c33cvendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-9851bd571b8ab08bca589cd73710badfef557d036f0fb7707f694f1c9f597cb4
- Source class
- Nvd cpe vulnerable target
- Assertions
- 2
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Oct 22, 2026
Retained assertion IDs
2f264577-b10c-47ea-b2d7-f7f9228073f3bef1ea0d-210a-44ae-a19c-780dfa2b047avendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-a74a0925fd770075058392e2bb7a5408e96a296354955527de213995d5070448
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Oct 22, 2026
Retained assertion IDs
f4cdfad9-a97c-4e57-9398-a722f7e89858vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-d059dbfcd39652adfca6d48669484008cb5d4a8b33116c81ee002cd9101904af
- Source class
- Nvd cpe vulnerable target
- Assertions
- 2
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Oct 22, 2026
Retained assertion IDs
26180180-7e1c-4a23-ac2c-9e9c61446cc18416ef0a-4748-41ce-9d94-e0b3f436fa52vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-ff9203e1d48a9425faa287000b301451cdbb2a9defda0e208f1ce06fd168da7d
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Oct 22, 2026
Retained assertion IDs
421aa0ad-bfba-4faf-9cc0-631e7d1e2df6Canonical 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
- 6
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Oct 22, 2026
Retained assertion IDs
adc8372a-014b-45e0-9960-9abce8abcf01b95e2136-d5a8-41cc-8c9c-1f4c2d383c06c283c3ea-f0b4-41e7-bd48-30f9df3fadd3d4f0b5c6-8da4-4f4d-9d5c-cc70883d2671e09aafbf-f88f-446a-9cb0-86a7ef02aac5fffe871e-1e33-4914-9784-fb2b6911cebaAssessments
CVSS by origin
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAV:L/AC:L/Au:N/C:C/I:C/A:CCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HDirect CVE/CNA normalized decisions
CISA-ADP
CVSS 3.1 · Secondary · Independent enrichment · rank 2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Validation
- Valid match
- Recomputed
- 7.8
- 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.