{"api_version":"1","generated_at":"2026-07-23T13:27:34+00:00","cve":"CVE-2020-1350","urls":{"html":"https://cve.report/CVE-2020-1350","api":"https://cve.report/api/cve/CVE-2020-1350.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-1350","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-1350"},"summary":{"title":"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'.","state":"PUBLIC","assigner":"secure@microsoft.com","published_at":"2020-07-14 23:15:00","updated_at":"2022-07-12 17:42:00"},"problem_types":["NVD-CWE-noinfo"],"metrics":[],"references":[{"url":"http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html","name":"http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html","refsource":"MISC","tags":["Third Party Advisory","VDB Entry"],"title":"SIGRed Windows DNS Denial Of Service ≈ Packet Storm","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350","name":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350","refsource":"MISC","tags":["Patch","Vendor Advisory"],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-1350","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-1350","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2008","cpe6":"-","cpe7":"sp2","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2008","cpe6":"r2","cpe7":"sp1","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2008","cpe6":"-","cpe7":"sp2","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2008","cpe6":"r2","cpe7":"sp1","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2012","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2012","cpe6":"r2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2012","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2012","cpe6":"r2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"1903","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"1909","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"2004","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"1903","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"1909","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"2004","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2019","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1350","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2019","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":{"cve_year":"2020","cve_id":"1350","cve":"CVE-2020-1350","vendorProject":"Microsoft","product":"Windows","vulnerabilityName":"Microsoft Windows DNS Server Remote Code Execution Vulnerability","dateAdded":"2021-11-03","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.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2022-05-03","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","cwes":"","catalogVersion":"2026.07.22","updated_at":"2026-07-22 20:07:16"},"epss":{"cve_year":"2020","cve_id":"1350","cve":"CVE-2020-1350","epss":"0.921780000","percentile":"0.998110000","score_date":"2026-07-22","updated_at":"2026-07-23 00:09:34"},"legacy_qids":[]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","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"}]}},"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":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350","refsource":"MISC","name":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350"},{"refsource":"MISC","name":"http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html","url":"http://packetstormsecurity.com/files/158484/SIGRed-Windows-DNS-Denial-Of-Service.html"}]}},"nvd":{"publishedDate":"2020-07-14 23:15:00","lastModifiedDate":"2022-07-12 17:42:00","problem_types":["NVD-CWE-noinfo"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":10,"baseSeverity":"CRITICAL"},"exploitabilityScore":3.9,"impactScore":6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:C/I:C/A:C","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE","baseScore":10},"severity":"HIGH","exploitabilityScore":10,"impactScore":10,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"1350","Ordinal":"160000","Title":"CVE-2020-1350","CVE":"CVE-2020-1350","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"1350","Ordinal":"1","NoteData":"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'.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"1350","Ordinal":"2","NoteData":"2020-07-14","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"1350","Ordinal":"3","NoteData":"2020-07-20","Type":"Other","Title":"Modified"}]}}}