CVE-2021-26432 (GCVE-0-2021-26432)

Vulnerability from cvelistv5 – Published: 2021-08-12 18:11 – Updated: 2024-08-03 20:26
VLAI
Title
Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
Summary
Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CWE
  • Remote Code Execution
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows 10 Version 1809 Affected: 10.0.0 , < 10.0.17763.2114 (custom)
    cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2114:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2114:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2114:*:*:*:*:*:arm64:*
 Create a notification for this product.
Microsoft Windows Server 2019 Affected: 10.0.0 , < 10.0.17763.2114 (custom)
    cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2114:*:*:*:*:*:*:*
 Create a notification for this product.
Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.0 , < 10.0.17763.2114 (custom)
    cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2114:*:*:*:*:*:*:*
 Create a notification for this product.
Microsoft Windows 10 Version 1909 Affected: 10.0.0 , < 10.0.18363.1734 (custom)
    cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1734:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1734:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1734:*:*:*:*:*:x64:*
 Create a notification for this product.
Microsoft Windows 10 Version 21H1 Affected: 10.0.0 , < 10.0.19043.1165 (custom)
    cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1165:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1165:*:*:*:*:*:arm64:*
    cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1165:*:*:*:*:*:x86:*
 Create a notification for this product.
Microsoft Windows 10 Version 2004 Affected: 10.0.0 , < 10.0.19041.1165 (custom)
    cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1165:*:*:*:*:*:x64:*
 Create a notification for this product.
Microsoft Windows Server version 2004 Affected: 10.0.0 , < 10.0.19041.1165 (custom)
    cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1165:*:*:*:*:*:*:*
 Create a notification for this product.
Microsoft Windows 10 Version 20H2 Affected: 10.0.0 , < 10.0.19042.1165 (custom)
    cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1165:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1165:*:*:*:*:*:arm64:*
 Create a notification for this product.
Microsoft Windows Server version 20H2 Affected: 10.0.0 , < 10.0.19042.1165 (custom)
    cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1165:*:*:*:*:*:*:*
 Create a notification for this product.
Microsoft Windows 10 Version 1507 Affected: 10.0.0 , < 10.0.10240.19022 (custom)
    cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19022:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19022:*:*:*:*:*:x64:*
 Create a notification for this product.
Microsoft Windows 10 Version 1607 Affected: 10.0.0 , < 10.0.14393.4583 (custom)
    cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4583:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4583:*:*:*:*:*:x64:*
 Create a notification for this product.
Microsoft Windows Server 2016 Affected: 10.0.0 , < 10.0.14393.4583 (custom)
    cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4583:*:*:*:*:*:*:*
 Create a notification for this product.
Microsoft Windows Server 2016 (Server Core installation) Affected: 10.0.0 , < 10.0.14393.4583 (custom)
    cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4583:*:*:*:*:*:*:*
 Create a notification for this product.
Microsoft Windows 8.1 Affected: 6.3.0 , < 6.3.9600.20094 (custom)
    cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20094:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20094:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_rt_8.1:6.3.9600.20094:*:*:*:*:*:*:*
 Create a notification for this product.
Microsoft Windows Server 2012 Affected: 6.2.0 , < 6.2.9200.23435 (custom)
    cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23435:*:*:*:*:*:x64:*
 Create a notification for this product.
Microsoft Windows Server 2012 (Server Core installation) Affected: 6.2.0 , < 6.2.9200.23435 (custom)
    cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23435:*:*:*:*:*:x64:*
 Create a notification for this product.
Microsoft Windows Server 2012 R2 Affected: 6.3.0 , < 6.3.9600.20094 (custom)
    cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20094:*:*:*:*:*:x64:*
 Create a notification for this product.
Microsoft Windows Server 2012 R2 (Server Core installation) Affected: 6.3.0 , < 6.3.9600.20094 (custom)
    cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20094:*:*:*:*:*:x64:*
 Create a notification for this product.
Date Public
2021-08-10 07:00
Show details on NVD website
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      "date": "2026-07-10",
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      "id": "CVE-2021-26432",
      "lastModified": "2024-11-21T05:56:22.467",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"secure@microsoft.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}, {\"source\": \"nvd@nist.gov\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:P/I:P/A:P\", \"baseScore\": 7.5, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2021-08-12T18:15:08.853",
      "references": "[{\"url\": \"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26432\", \"source\": \"secure@microsoft.com\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26432\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}]",
      "sourceIdentifier": "secure@microsoft.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-26432\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2021-08-12T18:15:08.853\",\"lastModified\":\"2024-11-21T05:56:22.467\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability\"},{\"lang\":\"es\",\"value\":\"Una Vulnerabilidad de Ejecuci\u00f3n de C\u00f3digo Remota en Windows Services para NFS ONCRPC XDR Driver\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":7.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"21540673-614A-4D40-8BD7-3F07723803B0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9E2C378B-1507-4C81-82F6-9F599616845A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FAE4278F-71A7-43E9-8F79-1CBFAE71D730\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E01A4CCA-4C43-46E0-90E6-3E4DBFBACD64\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6B8F3DD2-A145-4AF1-8545-CC42892DA3D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E9273B95-20ED-4547-B0A8-95AD15B30372\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AAE74AF3-C559-4645-A6C0-25C3D647AAC8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E93068DB-549B-45AB-8E5C-00EB5D8B5CF8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C6CE5198-C498-4672-AF4C-77AB4BE06C5C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A7DF96F8-BA6A-4780-9CA3-F719B3F81074\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DB18C4CE-5917-401E-ACF7-2747084FD36E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4A190388-AA82-4504-9D5A-624F23268C9F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0B60D940-80C7-49F0-8F4E-3F99AC15FA82\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DB79EE26-FC32-417D-A49C-A1A63165A968\"}]}]}],\"references\":[{\"url\":\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26432\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26432\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2026-03-27T14:29:25+00:00",
      "cve": "CVE-2021-26432",
      "id": "CVE-2021-26432",
      "initial_release_date": "2021-08-10T07:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-26432.json",
      "version": "3"
    }
  }
}



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Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.