CVE-2020-1021 (GCVE-0-2020-1021)

Vulnerability from cvelistv5 – Published: 2020-05-21 22:52 – Updated: 2026-08-19 16:33
VLAI
Title
Windows Error Reporting Elevation of Privilege Vulnerability
Summary
An elevation of privilege vulnerability exists in Windows Error Reporting (WER) when WER handles and executes files. The vulnerability could allow elevation of privilege if an attacker can successfully exploit it. An attacker who successfully exploited the vulnerability could gain greater access to sensitive information and system functionality. To exploit the vulnerability, an attacker could run a specially crafted application. The security update addresses the vulnerability by correcting the way that WER handles and executes files.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CWE
  • Elevation of Privilege
Assigner
References
Impacted products
Vendor Product Version CPE status
Microsoft Windows 10 Version 1507 Affected: 10.0.10240.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows 10 Version 1607 Affected: 10.0.14393.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows 10 Version 1709 Affected: 10.0.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows 10 Version 1709 for 32-bit Systems Affected: 10.0.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows 10 Version 1803 Affected: 10.0.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows 10 Version 1809 Affected: 10.0.17763.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows 10 Version 1809 Affected: 10.0.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows 10 Version 1903 for 32-bit Systems Affected: 10.0.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows 10 Version 1903 for ARM64-based Systems Affected: 10.0.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows 10 Version 1903 for x64-based Systems Affected: 10.0.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows 10 Version 1909 Affected: 10.0.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows Server 2016 Affected: 10.0.14393.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows Server 2016 (Server Core installation) Affected: 10.0.14393.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows Server 2019 Affected: 10.0.17763.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.17763.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows Server, version 1803 (Server Core Installation) Affected: 10.0.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows Server, version 1903 (Server Core installation) Affected: 10.0.0 , < publication (custom)
guessed Create a notification for this product.
Microsoft Windows Server, version 1909 (Server Core installation) Affected: 10.0.0 , < publication (custom)
guessed Create a notification for this product.
Date Public
2020-05-12 14:00
Show details on NVD website
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Este ID de CVE es diferente de CVE-2020-1082, CVE-2020-1088.\"}],\"affected\":[{\"source\":\"secure@microsoft.com\",\"affectedData\":[{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1507\",\"platforms\":[\"32-bit Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.10240.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1607\",\"platforms\":[\"32-bit Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.14393.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1709\",\"platforms\":[\"ARM64-based Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1709 for 32-bit Systems\",\"platforms\":[\"32-bit Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1803\",\"platforms\":[\"32-bit Systems\",\"ARM64-based Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1809\",\"platforms\":[\"32-bit Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.17763.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1809\",\"platforms\":[\"ARM64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1903 for 32-bit Systems\",\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1903 for ARM64-based Systems\",\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1903 for x64-based Systems\",\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1909\",\"platforms\":[\"32-bit Systems\",\"ARM64-based Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2016\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.14393.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2016 (Server Core installation)\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.14393.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2019\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.17763.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2019 (Server Core installation)\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.17763.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server, version 1803  (Server Core Installation)\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server, version 1903 (Server Core installation)\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server, version 1909 (Server Core installation)\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"publication\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":4.6,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.9,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-362\"}]}],\"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_10:1607:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E01A4CCA-4C43-46E0-90E6-3E4DBFBACD64\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"83B14968-3985-43C3-ACE5-8307196EFAE3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7CB85C75-4D35-480E-843D-60579EC75FCB\"},{\"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_10:1903:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3FB5CDAE-C713-4D9D-9D6A-2C2E8924A4BB\"},{\"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_server_2016:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5B921FDB-8E7D-427E-82BE-4432585080CF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C253A63F-03AB-41CB-A03A-B2674DEA98AA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DB79EE26-FC32-417D-A49C-A1A63165A968\"}]}]}],\"references\":[{\"url\":\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1021\",\"source\":\"secure@microsoft.com\"},{\"url\":\"http://packetstormsecurity.com/files/158028/Microsoft-Windows-Privilege-Escalation-Code-Execution.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1021\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]}]}}"
  }
}



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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.