CVE-2021-31955
Vulnerability from cvelistv5
Published
2021-06-08 22:46
Modified
2024-08-03 23:10
Severity ?
EPSS score ?
Summary
Windows Kernel Information Disclosure Vulnerability
References
Impacted products
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| ▼ | Microsoft | Windows 10 Version 1809 |
Version: 10.0.0 < 10.0.17763.1999 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:* |
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CISA Known exploited vulnerability
Data from the Known Exploited Vulnerabilities Catalog
Date added: 2021-11-03
Due date: 2021-11-17
Required action: Apply updates per vendor instructions.
Used in ransomware: Unknown
Notes: https://nvd.nist.gov/vuln/detail/CVE-2021-31955
{ containers: { adp: [ { metrics: [ { other: { content: { dateAdded: "2021-11-03", reference: "https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json", }, type: "kev", }, }, { other: { content: { id: "CVE-2021-31955", options: [ { Exploitation: "active", }, { Automatable: "no", }, { "Technical Impact": "partial", }, ], role: "CISA Coordinator", timestamp: "2024-05-29T18:16:48.580949Z", version: "2.0.3", }, type: "ssvc", }, }, ], problemTypes: [ { descriptions: [ { cweId: "CWE-497", description: "CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere", lang: "en", type: "CWE", }, ], }, ], providerMetadata: { dateUpdated: "2024-06-04T17:12:38.893Z", orgId: "134c704f-9b21-4f2e-91b3-4a467353bcc0", shortName: "CISA-ADP", }, timeline: [ { lang: "en", time: "2021-11-03T00:00:00+00:00", value: "CVE-2021-31955 added to KEV", }, { lang: "en", time: "2021-11-03T00:00:00+00:00", value: "CVE-2021-31955 added to CISA KEV", }, ], title: "CISA ADP Vulnrichment", }, { providerMetadata: { dateUpdated: "2024-08-03T23:10:31.263Z", orgId: "af854a3a-2127-422b-91ae-364da2661108", shortName: "CVE", }, references: [ { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31955", }, ], title: "CVE Program Container", }, ], cna: { affected: [ { cpes: [ "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:*", ], platforms: [ "32-bit Systems", "x64-based Systems", "ARM64-based Systems", ], product: "Windows 10 Version 1809", vendor: "Microsoft", versions: [ { lessThan: "10.0.17763.1999", status: "affected", version: "10.0.0", versionType: "custom", }, ], }, { cpes: [ "cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.1999:*:*:*:*:*:*:*", ], platforms: [ "x64-based Systems", ], product: "Windows Server 2019", vendor: "Microsoft", versions: [ { lessThan: "10.0.17763.1999", status: "affected", version: "10.0.0", versionType: "custom", }, ], }, { cpes: [ "cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.1999:*:*:*:*:*:*:*", ], platforms: [ "x64-based Systems", ], product: "Windows Server 2019 (Server Core installation)", vendor: "Microsoft", versions: [ { lessThan: "10.0.17763.1999", status: "affected", version: "10.0.0", versionType: "custom", }, ], }, { cpes: [ "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:*", ], platforms: [ "32-bit Systems", "x64-based Systems", "ARM64-based Systems", ], product: "Windows 10 Version 1909", vendor: "Microsoft", versions: [ { lessThan: "10.0.18363.1621", status: "affected", version: "10.0.0", versionType: "custom", }, ], }, { cpes: [ 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lessThan: "10.0.19041.1052", status: "affected", version: "10.0.0", versionType: "custom", }, ], }, { cpes: [ "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:*", ], platforms: [ "32-bit Systems", "ARM64-based Systems", ], product: "Windows 10 Version 20H2", vendor: "Microsoft", versions: [ { lessThan: "10.0.19042.1052", status: "affected", version: "10.0.0", versionType: "custom", }, ], }, { cpes: [ "cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1052:*:*:*:*:*:*:*", ], platforms: [ "x64-based Systems", ], product: "Windows Server version 20H2", vendor: "Microsoft", versions: [ { lessThan: "10.0.19042.1052", status: "affected", version: "10.0.0", versionType: "custom", }, ], }, ], datePublic: "2021-06-08T07:00:00+00:00", descriptions: [ { lang: "en-US", value: "Windows Kernel Information Disclosure Vulnerability", }, ], metrics: [ { cvssV3_1: { baseScore: 5.5, baseSeverity: "MEDIUM", vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C", version: "3.1", }, format: "CVSS", scenarios: [ { lang: "en-US", value: "GENERAL", }, ], }, ], problemTypes: [ { descriptions: [ { description: "Information Disclosure", lang: "en-US", type: "Impact", }, ], }, ], providerMetadata: { dateUpdated: "2024-05-29T14:55:31.279Z", orgId: "f38d906d-7342-40ea-92c1-6c4a2c6478c8", shortName: "microsoft", }, references: [ { tags: [ "x_refsource_MISC", ], url: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31955", }, ], title: "Windows Kernel Information Disclosure Vulnerability", }, }, cveMetadata: { assignerOrgId: "f38d906d-7342-40ea-92c1-6c4a2c6478c8", assignerShortName: "microsoft", cveId: "CVE-2021-31955", datePublished: "2021-06-08T22:46:25", dateReserved: "2021-04-30T00:00:00", dateUpdated: "2024-08-03T23:10:31.263Z", state: "PUBLISHED", }, dataType: "CVE_RECORD", dataVersion: "5.1", "vulnerability-lookup:meta": { cisa_known_exploited: { cveID: "CVE-2021-31955", cwes: "[\"CWE-497\"]", dateAdded: "2021-11-03", dueDate: "2021-11-17", knownRansomwareCampaignUse: "Unknown", notes: "https://nvd.nist.gov/vuln/detail/CVE-2021-31955", product: "Windows", requiredAction: "Apply updates per vendor instructions.", shortDescription: "Microsoft Windows Kernel contains an unspecified vulnerability that allows for information disclosure. Successful exploitation allows attackers to read the contents of kernel memory from a user-mode process.", vendorProject: "Microsoft", vulnerabilityName: "Microsoft Windows Kernel Information Disclosure Vulnerability", }, nvd: "{\"cve\":{\"id\":\"CVE-2021-31955\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2021-06-08T23:15:08.817\",\"lastModified\":\"2025-03-07T21:54:07.007\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Windows Kernel Information Disclosure Vulnerability\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de Divulgación de Información en Windows 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{\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-05-29T18:16:48.580949Z\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2021-11-03T00:00:00+00:00\", \"value\": \"CVE-2021-31955 added to KEV\"}, {\"lang\": \"en\", \"time\": \"2021-11-03T00:00:00+00:00\", \"value\": \"CVE-2021-31955 added to CISA KEV\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-497\", \"description\": \"CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-29T18:16:53.678Z\"}}], \"cna\": {\"title\": \"Windows Kernel Information Disclosure Vulnerability\", \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"vectorString\": 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\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31955\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en-US\", \"value\": \"Windows Kernel Information Disclosure Vulnerability\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en-US\", \"type\": \"Impact\", \"description\": \"Information Disclosure\"}]}], \"providerMetadata\": {\"orgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"shortName\": \"microsoft\", \"dateUpdated\": \"2024-05-29T14:55:31.279Z\"}}}", cveMetadata: "{\"cveId\": \"CVE-2021-31955\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-03T23:10:31.263Z\", \"dateReserved\": \"2021-04-30T00:00:00\", \"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"datePublished\": \"2021-06-08T22:46:25\", \"assignerShortName\": \"microsoft\"}", dataType: "CVE_RECORD", dataVersion: "5.1", }, }, }
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.