{"history":[{"alert":0,"cve":"CVE-2020-1350","id":21966,"kind":"epss","observed_at":1794500401,"payload":"{\"date\": \"2026-11-12\", \"epss\": 0.96721, \"percentile\": 0.99886}"},{"alert":0,"cve":"CVE-2020-1350","id":19584,"kind":"epss","observed_at":1794327601,"payload":"{\"date\": \"2026-11-10\", \"epss\": 0.96721, \"percentile\": 0.99885}"},{"alert":0,"cve":"CVE-2020-1350","id":17550,"kind":"epss","observed_at":1794241201,"payload":"{\"date\": \"2026-11-09\", \"epss\": 0.96721, \"percentile\": 0.99885}"},{"alert":0,"cve":"CVE-2020-1350","id":15614,"kind":"epss","observed_at":1794154800,"payload":"{\"date\": \"2026-11-08\", \"epss\": 0.96721, \"percentile\": 0.99885}"},{"alert":0,"cve":"CVE-2020-1350","id":13592,"kind":"epss","observed_at":1794068402,"payload":"{\"date\": \"2026-11-07\", \"epss\": 0.96721, \"percentile\": 0.99885}"},{"alert":0,"cve":"CVE-2020-1350","id":11374,"kind":"epss","observed_at":1793982001,"payload":"{\"date\": \"2026-11-06\", \"epss\": 0.96721, \"percentile\": 0.99885}"},{"alert":1,"cve":"CVE-2020-1350","id":9416,"kind":"cna","observed_at":1793938800,"payload":"{\"containers\": {\"adp\": [{\"providerMetadata\": {\"dateUpdated\": \"2024-08-04T06:32:01.039Z\", \"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-2020-1350\"}, {\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html\"}], \"title\": \"CVE Program Container\"}, {\"metrics\": [{\"cvssV3_1\": {\"attackComplexity\": \"LOW\", \"attackVector\": \"NETWORK\", \"availabilityImpact\": \"HIGH\", \"baseScore\": 10, \"baseSeverity\": \"CRITICAL\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"scope\": \"CHANGED\", \"userInteraction\": \"NONE\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H\", \"version\": \"3.1\"}}, {\"other\": {\"content\": {\"id\": \"CVE-2020-1350\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"role\": \"CISA Coordinator\", \"timestamp\": \"2025-02-07T14:38:31.758044Z\", \"version\": \"2.0.3\"}, \"type\": \"ssvc\"}}, {\"other\": {\"content\": {\"dateAdded\": \"2021-11-03\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1350\"}, \"type\": \"kev\"}}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-20\", \"description\": \"CWE-20 Improper Input Validation\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2025-10-21T23:35:39.529Z\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\"}, \"references\": [{\"tags\": [\"government-resource\"], \"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1350\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2021-11-03T00:00:00.000Z\", \"value\": \"CVE-2020-1350 added to CISA KEV\"}], \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"affected\": [{\"product\": \"Windows Server\", \"vendor\": \"Microsoft\", \"versions\": [{\"status\": \"affected\", \"version\": \"2019\"}, {\"status\": \"affected\", \"version\": \"2019  (Core installation)\"}, {\"status\": \"affected\", \"version\": \"2016\"}, {\"status\": \"affected\", \"version\": \"2016  (Core installation)\"}, {\"status\": \"affected\", \"version\": \"2008 for 32-bit Systems Service Pack 2\"}, {\"status\": \"affected\", \"version\": \"2008 for 32-bit Systems Service Pack 2 (Core installation)\"}, {\"status\": \"affected\", \"version\": \"2008 for x64-based Systems Service Pack 2\"}, {\"status\": \"affected\", \"version\": \"2008 for x64-based Systems Service Pack 2 (Core installation)\"}, {\"status\": \"affected\", \"version\": \"2008 R2 for x64-based Systems Service Pack 1\"}, {\"status\": \"affected\", \"version\": \"2008 R2 for x64-based Systems Service Pack 1 (Core installation)\"}, {\"status\": \"affected\", \"version\": \"2012\"}, {\"status\": \"affected\", \"version\": \"2012 (Core installation)\"}, {\"status\": \"affected\", \"version\": \"2012 R2\"}, {\"status\": \"affected\", \"version\": \"2012 R2 (Core installation)\"}]}, {\"product\": \"Windows Server, version 1909 (Server Core installation)\", \"vendor\": \"Microsoft\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\"}]}, {\"product\": \"Windows Server, version 1903 (Server Core installation)\", \"vendor\": \"Microsoft\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\"}]}, {\"product\": \"Windows Server, version 2004 (Server Core installation)\", \"vendor\": \"Microsoft\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\"}]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests, aka 'Windows DNS Server Remote Code Execution Vulnerability'.\"}], \"problemTypes\": [{\"descriptions\": [{\"description\": \"Remote Code Execution\", \"lang\": \"en\", \"type\": \"text\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2020-07-21T01:06:12.000Z\", \"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-2020-1350\"}, {\"tags\": [\"x_refsource_MISC\"], \"url\": \"http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html\"}], \"x_legacyV4Record\": {\"CVE_data_meta\": {\"ASSIGNER\": \"secure@microsoft.com\", \"ID\": \"CVE-2020-1350\", \"STATE\": \"PUBLIC\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"product_name\": \"Windows Server\", \"version\": {\"version_data\": [{\"version_value\": \"2019\"}, {\"version_value\": \"2019  (Core installation)\"}, {\"version_value\": \"2016\"}, {\"version_value\": \"2016  (Core installation)\"}, {\"version_value\": \"2008 for 32-bit Systems Service Pack 2\"}, {\"version_value\": \"2008 for 32-bit Systems Service Pack 2 (Core installation)\"}, {\"version_value\": \"2008 for x64-based Systems Service Pack 2\"}, {\"version_value\": \"2008 for x64-based Systems Service Pack 2 (Core installation)\"}, {\"version_value\": \"2008 R2 for x64-based Systems Service Pack 1\"}, {\"version_value\": \"2008 R2 for x64-based Systems Service Pack 1 (Core installation)\"}, {\"version_value\": \"2012\"}, {\"version_value\": \"2012 (Core installation)\"}, {\"version_value\": \"2012 R2\"}, {\"version_value\": \"2012 R2 (Core installation)\"}]}}, {\"product_name\": \"Windows Server, version 1909 (Server Core installation)\", \"version\": {\"version_data\": [{\"version_value\": \"\"}]}}, {\"product_name\": \"Windows Server, version 1903 (Server Core installation)\", \"version\": {\"version_data\": [{\"version_value\": \"\"}]}}, {\"product_name\": \"Windows Server, version 2004 (Server Core installation)\", \"version\": {\"version_data\": [{\"version_value\": \"\"}]}}]}, \"vendor_name\": \"Microsoft\"}]}}, \"data_format\": \"MITRE\", \"data_type\": \"CVE\", \"data_version\": \"4.0\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests, aka 'Windows DNS Server Remote Code Execution Vulnerability'.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"Remote Code Execution\"}]}]}, \"references\": {\"reference_data\": [{\"name\": \"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350\", \"refsource\": \"MISC\", \"url\": \"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350\"}, {\"name\": \"http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html\", \"refsource\": \"MISC\", \"url\": \"http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html\"}]}}}}, \"cveMetadata\": {\"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"assignerShortName\": \"microsoft\", \"cveId\": \"CVE-2020-1350\", \"datePublished\": \"2020-07-14T22:54:06.000Z\", \"dateReserved\": \"2019-11-04T00:00:00.000Z\", \"dateUpdated\": \"2025-10-21T23:35:39.529Z\", \"state\": \"PUBLISHED\"}, \"dataType\": \"CVE_RECORD\", \"dataVersion\": \"5.1\"}"},{"alert":0,"cve":"CVE-2020-1350","id":9120,"kind":"epss","observed_at":1793895600,"payload":"{\"date\": \"2026-11-05\", \"epss\": 0.96721, \"percentile\": 0.99885}"},{"alert":0,"cve":"CVE-2020-1350","id":6908,"kind":"epss","observed_at":1793809200,"payload":"{\"date\": \"2026-11-04\", \"epss\": 0.96721, \"percentile\": 0.99885}"},{"alert":0,"cve":"CVE-2020-1350","id":4685,"kind":"epss","observed_at":1793722800,"payload":"{\"date\": \"2026-11-03\", \"epss\": 0.96721, \"percentile\": 0.99885}"},{"alert":0,"cve":"CVE-2020-1350","id":2467,"kind":"epss","observed_at":1793665375,"payload":"{\"date\": \"2026-11-02\", \"epss\": 0.96721, \"percentile\": 0.99885}"},{"alert":1,"cve":"CVE-2020-1350","id":1640,"kind":"kev","observed_at":1793665375,"payload":"{\"cveID\": \"CVE-2020-1350\", \"cwes\": [], \"dateAdded\": \"2021-11-03\", \"dueDate\": \"2022-05-03\", \"forensicTriage\": \"No\", \"knownRansomwareCampaignUse\": \"Unknown\", \"notes\": \"Reference CISA's ED 20-03 (https://www.cisa.gov/news-events/directives/ed-20-03-mitigate-windows-dns-server-remote-code-execution-vulnerability-july-2020-patch-tuesday) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 20-03. https://nvd.nist.gov/vuln/detail/CVE-2020-1350\", \"product\": \"Windows\", \"requiredAction\": \"Apply updates per vendor instructions.\", \"shortDescription\": \"Microsoft Windows DNS Servers fail to properly handle requests, allowing an attacker to perform remote code execution in the context of the Local System Account. The vulnerability is also known under the moniker of SIGRed.\", \"vendorProject\": \"Microsoft\", \"vulnerabilityName\": \"Microsoft Windows DNS Server Remote Code Execution Vulnerability\"}"}],"record":{"affected":[{"product":"Windows Server","vendor":"Microsoft","versions":[{"status":"affected","version":"2019"},{"status":"affected","version":"2019  (Core installation)"},{"status":"affected","version":"2016"},{"status":"affected","version":"2016  (Core installation)"},{"status":"affected","version":"2008 for 32-bit Systems Service Pack 2"},{"status":"affected","version":"2008 for 32-bit Systems Service Pack 2 (Core installation)"},{"status":"affected","version":"2008 for x64-based Systems Service Pack 2"},{"status":"affected","version":"2008 for x64-based Systems Service Pack 2 (Core installation)"},{"status":"affected","version":"2008 R2 for x64-based Systems Service Pack 1"},{"status":"affected","version":"2008 R2 for x64-based Systems Service Pack 1 (Core installation)"},{"status":"affected","version":"2012"},{"status":"affected","version":"2012 (Core installation)"},{"status":"affected","version":"2012 R2"},{"status":"affected","version":"2012 R2 (Core installation)"}]},{"product":"Windows Server, version 1909 (Server Core installation)","vendor":"Microsoft","versions":[{"status":"affected","version":"unspecified"}]},{"product":"Windows Server, version 1903 (Server Core installation)","vendor":"Microsoft","versions":[{"status":"affected","version":"unspecified"}]},{"product":"Windows Server, version 2004 (Server Core installation)","vendor":"Microsoft","versions":[{"status":"affected","version":"unspecified"}]}],"cna":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-04T06:32:01.039Z","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-2020-1350"},{"tags":["x_refsource_MISC","x_transferred"],"url":"http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html"}],"title":"CVE Program Container"},{"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":10,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}},{"other":{"content":{"id":"CVE-2020-1350","options":[{"Exploitation":"active"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2025-02-07T14:38:31.758044Z","version":"2.0.3"},"type":"ssvc"}},{"other":{"content":{"dateAdded":"2021-11-03","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1350"},"type":"kev"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2025-10-21T23:35:39.529Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1350"}],"timeline":[{"lang":"en","time":"2021-11-03T00:00:00.000Z","value":"CVE-2020-1350 added to CISA KEV"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"Windows Server","vendor":"Microsoft","versions":[{"status":"affected","version":"2019"},{"status":"affected","version":"2019  (Core installation)"},{"status":"affected","version":"2016"},{"status":"affected","version":"2016  (Core installation)"},{"status":"affected","version":"2008 for 32-bit Systems Service Pack 2"},{"status":"affected","version":"2008 for 32-bit Systems Service Pack 2 (Core installation)"},{"status":"affected","version":"2008 for x64-based Systems Service Pack 2"},{"status":"affected","version":"2008 for x64-based Systems Service Pack 2 (Core installation)"},{"status":"affected","version":"2008 R2 for x64-based Systems Service Pack 1"},{"status":"affected","version":"2008 R2 for x64-based Systems Service Pack 1 (Core installation)"},{"status":"affected","version":"2012"},{"status":"affected","version":"2012 (Core installation)"},{"status":"affected","version":"2012 R2"},{"status":"affected","version":"2012 R2 (Core installation)"}]},{"product":"Windows Server, version 1909 (Server Core installation)","vendor":"Microsoft","versions":[{"status":"affected","version":"unspecified"}]},{"product":"Windows Server, version 1903 (Server Core installation)","vendor":"Microsoft","versions":[{"status":"affected","version":"unspecified"}]},{"product":"Windows Server, version 2004 (Server Core installation)","vendor":"Microsoft","versions":[{"status":"affected","version":"unspecified"}]}],"descriptions":[{"lang":"en","value":"A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests, aka 'Windows DNS Server Remote Code Execution Vulnerability'."}],"problemTypes":[{"descriptions":[{"description":"Remote Code Execution","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2020-07-21T01:06:12.000Z","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-2020-1350"},{"tags":["x_refsource_MISC"],"url":"http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"secure@microsoft.com","ID":"CVE-2020-1350","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Windows Server","version":{"version_data":[{"version_value":"2019"},{"version_value":"2019  (Core installation)"},{"version_value":"2016"},{"version_value":"2016  (Core installation)"},{"version_value":"2008 for 32-bit Systems Service Pack 2"},{"version_value":"2008 for 32-bit Systems Service Pack 2 (Core installation)"},{"version_value":"2008 for x64-based Systems Service Pack 2"},{"version_value":"2008 for x64-based Systems Service Pack 2 (Core installation)"},{"version_value":"2008 R2 for x64-based Systems Service Pack 1"},{"version_value":"2008 R2 for x64-based Systems Service Pack 1 (Core installation)"},{"version_value":"2012"},{"version_value":"2012 (Core installation)"},{"version_value":"2012 R2"},{"version_value":"2012 R2 (Core installation)"}]}},{"product_name":"Windows Server, version 1909 (Server Core installation)","version":{"version_data":[{"version_value":""}]}},{"product_name":"Windows Server, version 1903 (Server Core installation)","version":{"version_data":[{"version_value":""}]}},{"product_name":"Windows Server, version 2004 (Server Core installation)","version":{"version_data":[{"version_value":""}]}}]},"vendor_name":"Microsoft"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests, aka 'Windows DNS Server Remote Code Execution Vulnerability'."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Remote Code Execution"}]}]},"references":{"reference_data":[{"name":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350","refsource":"MISC","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350"},{"name":"http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html","refsource":"MISC","url":"http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html"}]}}}},"cveMetadata":{"assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","assignerShortName":"microsoft","cveId":"CVE-2020-1350","datePublished":"2020-07-14T22:54:06.000Z","dateReserved":"2019-11-04T00:00:00.000Z","dateUpdated":"2025-10-21T23:35:39.529Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"cna_checked":1793938800,"cve":"CVE-2020-1350","description":"A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests, aka 'Windows DNS Server Remote Code Execution Vulnerability'.","epss":{"date":"2026-11-12","epss":0.96721,"percentile":0.99886},"epss_checked":1794522003,"first_seen":1793665375,"kev":{"cveID":"CVE-2020-1350","cwes":[],"dateAdded":"2021-11-03","dueDate":"2022-05-03","forensicTriage":"No","knownRansomwareCampaignUse":"Unknown","notes":"Reference CISA's ED 20-03 (https://www.cisa.gov/news-events/directives/ed-20-03-mitigate-windows-dns-server-remote-code-execution-vulnerability-july-2020-patch-tuesday) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 20-03. https://nvd.nist.gov/vuln/detail/CVE-2020-1350","product":"Windows","requiredAction":"Apply updates per vendor instructions.","shortDescription":"Microsoft Windows DNS Servers fail to properly handle requests, allowing an attacker to perform remote code execution in the context of the Local System Account. The vulnerability is also known under the moniker of SIGRed.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft Windows DNS Server Remote Code Execution Vulnerability"},"kev_checked":1794522003,"products":"Microsoft Windows Server, Microsoft Windows Server, version 1909 (Server Core installation), Microsoft Windows Server, version 1903 (Server Core installation), Microsoft Windows Server, version 2004 (Server Core installation)","references":["https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350","http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1350"],"score":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":10,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","provider":"CISA-ADP","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"solutions":"","state":"PUBLISHED","title":"Microsoft Windows DNS Server Remote Code Execution Vulnerability","updated_at":1794500401,"workarounds":""},"sources":[]}