CVE-2021-31201 (GCVE-0-2021-31201)
Vulnerability from cvelistv5 – Published: 2021-06-08 22:46 – Updated: 2025-10-21 23:25Title
Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability
Summary
Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability
Severity
SSVC
Exploitation: active
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Elevation of Privilege
- CWE-noinfo Not enough information
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://portal.msrc.microsoft.com/en-US/security-… | x_refsource_MISC |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
25 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.0 , < 10.0.17763.1999
(custom)
cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.1999:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.1999:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.1999:*:*:*:*:*:arm64:* |
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.0 , < 10.0.17763.1999
(custom)
cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.1999:*:*:*:*:*:*:* |
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.0 , < 10.0.17763.1999
(custom)
cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.1999:*:*:*:*:*:*:* |
|
| Microsoft | Windows 10 Version 1909 |
Affected:
10.0.0 , < 10.0.18363.1621
(custom)
cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1621:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1621:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1621:*:*:*:*:*:x64:* |
|
| Microsoft | Windows 10 Version 21H1 |
Affected:
10.0.0 , < 10.0.19043.1052
(custom)
cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1052:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1052:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1052:*:*:*:*:*:x86:* |
|
| Microsoft | Windows 10 Version 2004 |
Affected:
10.0.0 , < 10.0.19041.1052
(custom)
cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1052:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server version 2004 |
Affected:
10.0.0 , < 10.0.19041.1052
(custom)
cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1052:*:*:*:*:*:*:* |
|
| Microsoft | Windows 10 Version 20H2 |
Affected:
10.0.0 , < 10.0.19042.1052
(custom)
cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1052:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1052:*:*:*:*:*:arm64:* |
|
| Microsoft | Windows Server version 20H2 |
Affected:
10.0.0 , < 10.0.19042.1052
(custom)
cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1052:*:*:*:*:*:*:* |
|
| Microsoft | Windows 10 Version 1507 |
Affected:
10.0.0 , < 10.0.10240.18967
(custom)
cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.18967:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.18967:*:*:*:*:*:x64:* |
|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.0 , < 10.0.14393.4467
(custom)
cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4467:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4467:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.0 , < 10.0.14393.4467
(custom)
cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4467:*:*:*:*:*:*:* |
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.0 , < 10.0.14393.4467
(custom)
cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4467:*:*:*:*:*:*:* |
|
| Microsoft | Windows 7 |
Affected:
6.1.0 , < 6.1.7601.25632
(custom)
cpe:2.3:o:microsoft:windows_7:6.1.7601.25632:sp1:*:*:*:*:x86:* |
|
| Microsoft | Windows 7 Service Pack 1 |
Affected:
6.1.0 , < 6.1.7601.25632
(custom)
cpe:2.3:o:microsoft:windows_7:6.1.7601.25632:sp1:*:*:*:*:x64:* |
|
| Microsoft | Windows 8.1 |
Affected:
6.3.0 , < 6.3.9600.20045
(custom)
Affected: 6.3.0 , < 6.3.9600.20044 (custom) cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20045:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20044:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20045:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20044:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_rt_8.1:6.3.9600.20045:*:*:*:*:*:*:* |
|
| Microsoft | Windows Server 2008 Service Pack 2 |
Affected:
6.0.0 , < 6.0.6003.21137
(custom)
cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21137:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) |
Affected:
6.0.0 , < 6.0.6003.21137
(custom)
cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21137:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21137:*:*:*:*:*:x86:* |
|
| Microsoft | Windows Server 2008 Service Pack 2 |
Affected:
6.0.0 , < 6.0.6003.21137
(custom)
cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21137:*:*:*:*:*:x86:* |
|
| Microsoft | Windows Server 2008 R2 Service Pack 1 |
Affected:
6.1.0 , < 6.1.7601.25632
(custom)
cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25632:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) |
Affected:
6.0.0 , < 6.1.7601.25632
(custom)
cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25632:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server 2012 |
Affected:
6.2.0 , < 6.2.9200.23372
(custom)
cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23372:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server 2012 (Server Core installation) |
Affected:
6.2.0 , < 6.2.9200.23372
(custom)
cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23372:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server 2012 R2 |
Affected:
6.3.0 , < 6.3.9600.20045
(custom)
Affected: 6.3.0 , < 6.3.9600.20044 (custom) cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20045:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20044:*:*:*:*:*:x64:* |
|
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
Affected:
6.3.0 , < 6.3.9600.20045
(custom)
Affected: 6.3.0 , < 6.3.9600.20044 (custom) cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20045:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20044:*:*:*:*:*:x64:* |
Date Public
2021-06-08 07:00
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: a7ccd6c2-6da1-4e10-b64e-117dacf43266
Exploited: Yes
Timestamps
First Seen: 2021-11-03
Asserted: 2021-11-03
Scope
Notes: KEV entry: Microsoft Enhanced Cryptographic Provider Privilege Escalation Vulnerability | Affected: Microsoft / Enhanced Cryptographic Provider | Description: Microsoft Enhanced Cryptographic Provider contains an unspecified vulnerability that allows for privilege escalation. | Required action: Apply updates per vendor instructions. | Due date: 2021-11-17 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2021-31201
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Enhanced Cryptographic Provider |
| Due Date | 2021-11-17 |
| Date Added | 2021-11-03 |
| Vendorproject | Microsoft |
| Vulnerabilityname | Microsoft Enhanced Cryptographic Provider Privilege Escalation Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-02-02 12:28 UTC
| Updated: 2026-02-06 07:17 UTC
KEVintel KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: bfb881ec-6bec-495c-8c42-81e8b03c1a01
Exploited: Yes
Timestamps
First Seen: 2021-11-03
Asserted: 2021-11-03
Scope
Notes: KEVIntel entry: Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability | Affected: Microsoft / Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 1909, Windows 10 Version 21H1, Windows 10 Version 2004, Windows Server version 2004, Windows 10 Version 20H2, Windows Server version 20H2, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows 7, Windows 7 Service Pack 1, Windows 8.1, Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation) | CVSS: 5.2 (MEDIUM) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability |
| Vendor | Microsoft |
| Product | Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 1909, Windows 10 Version 21H1, Windows 10 Version 2004, Windows Server version 2004, Windows 10 Version 20H2, Windows Server version 20H2, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows 7, Windows 7 Service Pack 1, Windows 8.1, Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation) |
| Added Date | 2021-11-03T00:00:00.000Z |
| Cvss Score | 5.2 |
| Epss Score | None |
| Cvss Severity | MEDIUM |
| Epss Percentile | None |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-06-19 12:47 UTC
| Updated: 2026-06-19 12:47 UTC
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\"CVE-2021-31201 added to CISA KEV\"}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31201\", \"tags\": [\"government-resource\"]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-04T15:41:29.629Z\"}}], \"cna\": {\"title\": \"Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability\", \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 5.2, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C\"}, \"scenarios\": [{\"lang\": \"en-US\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"cpes\": [\"cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.1999:*:*:*:*:*:x86:*\", 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\"cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1052:*:*:*:*:*:arm64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 20H2\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.19042.1052\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"ARM64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1052:*:*:*:*:*:*:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server version 20H2\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.19042.1052\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.18967:*:*:*:*:*:x86:*\", \"cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.18967:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 1507\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.10240.18967\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4467:*:*:*:*:*:x86:*\", \"cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4467:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 1607\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.14393.4467\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4467:*:*:*:*:*:*:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2016\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.14393.4467\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4467:*:*:*:*:*:*:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2016 (Server Core installation)\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.14393.4467\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_7:6.1.7601.25632:sp1:*:*:*:*:x86:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 7\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.1.0\", \"lessThan\": \"6.1.7601.25632\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_7:6.1.7601.25632:sp1:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 7 Service Pack 1\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.1.0\", \"lessThan\": \"6.1.7601.25632\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20045:*:*:*:*:*:x86:*\", \"cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20044:*:*:*:*:*:x86:*\", 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installation)\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.3.0\", \"lessThan\": \"6.3.9600.20045\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"6.3.0\", \"lessThan\": \"6.3.9600.20044\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}], \"datePublic\": \"2021-06-08T07:00:00.000Z\", \"references\": [{\"url\": \"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31201\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en-US\", \"value\": \"Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en-US\", \"type\": \"Impact\", \"description\": \"Elevation of Privilege\"}]}], \"providerMetadata\": {\"orgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"shortName\": \"microsoft\", \"dateUpdated\": \"2024-05-29T14:55:41.135Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2021-31201\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:25:43.529Z\", \"dateReserved\": \"2021-04-14T00:00:00.000Z\", \"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"datePublished\": \"2021-06-08T22:46:13.000Z\", \"assignerShortName\": \"microsoft\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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