{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-85880", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "state": "PUBLISHED", "assignerShortName": "microsoft", "dateReserved": "2026-09-04T18:18:19.326Z", "datePublished": "2026-09-08T17:14:21.465Z", "dateUpdated": "2026-09-18T20:41:52.808Z"}, "containers": {"cna": {"title": "Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability", "datePublic": "2026-09-08T14:00:00.000Z", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*", "versionStartIncluding": "10.0.17763.0", "versionEndExcluding": "10.0.17763.9245"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.17763.0", "versionEndExcluding": "10.0.17763.9245"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.17763.0", "versionEndExcluding": "10.0.17763.9245"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.20348.0", "versionEndExcluding": "10.0.20348.5622"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*", "versionStartIncluding": "10.0.19044.0", "versionEndExcluding": "10.0.19044.7725"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:*", "versionStartIncluding": "10.0.19045.0", "versionEndExcluding": "10.0.19045.7725"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*", "versionStartIncluding": "10.0.14393.0", "versionEndExcluding": "10.0.14393.9512"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.14393.0", "versionEndExcluding": "10.0.14393.9512"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.14393.0", "versionEndExcluding": "10.0.14393.9512"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*", "versionStartIncluding": "6.2.9200.0", "versionEndExcluding": "6.2.9200.26349"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*", "versionStartIncluding": "6.2.9200.0", "versionEndExcluding": "6.2.9200.26349"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*", "versionStartIncluding": "6.3.9600.0", "versionEndExcluding": "6.3.9600.23397"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*", "versionStartIncluding": "6.3.9600.0", "versionEndExcluding": "6.3.9600.23397"}]}]}], "affected": [{"vendor": "Microsoft", "product": "Windows 10 Version 1607", "platforms": ["32-bit Systems", "x64-based Systems"], "versions": [{"version": "10.0.14393.0", "lessThan": "10.0.14393.9512", "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": "10.0.17763.9245", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 21H2", "platforms": ["32-bit Systems", "ARM64-based Systems", "x64-based Systems"], "versions": [{"version": "10.0.19044.0", "lessThan": "10.0.19044.7725", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 22H2", "platforms": ["32-bit Systems", "ARM64-based Systems", "x64-based Systems"], "versions": [{"version": "10.0.19045.0", "lessThan": "10.0.19045.7725", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012", "platforms": ["x64-based Systems"], "versions": [{"version": "6.2.9200.0", "lessThan": "6.2.9200.26349", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 (Server Core installation)", "platforms": ["x64-based Systems"], "versions": [{"version": "6.2.9200.0", "lessThan": "6.2.9200.26349", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 R2", "platforms": ["x64-based Systems"], "versions": [{"version": "6.3.9600.0", "lessThan": "6.3.9600.23397", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 R2 (Server Core installation)", "platforms": ["x64-based Systems"], "versions": [{"version": "6.3.9600.0", "lessThan": "6.3.9600.23397", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2016", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.14393.0", "lessThan": "10.0.14393.9512", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2016 (Server Core installation)", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.14393.0", "lessThan": "10.0.14393.9512", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2019", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.17763.0", "lessThan": "10.0.17763.9245", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2019 (Server Core installation)", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.17763.0", "lessThan": "10.0.17763.9245", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2022", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.20348.0", "lessThan": "10.0.20348.5622", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "CWE-122: Heap-based Buffer Overflow", "lang": "en-US", "type": "CWE", "cweId": "CWE-122"}, {"description": "CWE-908: Use of Uninitialized Resource", "lang": "en-US", "type": "CWE", "cweId": "CWE-908"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-09-18T20:41:52.808Z"}, "references": [{"name": "Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability", "tags": ["vendor-advisory", "patch"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85880"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C"}}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-08T00:00:00+00:00", "options": [{"Exploitation": "active"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-85880"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2026-09-08", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85880"}}}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85880", "tags": ["government-resource"]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-09T04:27:01.173Z"}, "timeline": [{"time": "2026-09-08T00:00:00.000Z", "lang": "en", "value": "CVE-2026-85880 added to CISA KEV"}]}]}, "vulnerability-lookup:meta": {"cisa_known_exploited": {"cveID": "CVE-2026-85880", "cwes": "[\"CWE-122\", \"CWE-908\"]", "dateAdded": "2026-09-08", "dueDate": "2026-09-22", "forensicTriage": "No", "knownRansomwareCampaignUse": "Unknown", "notes": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-85880 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-85880", "product": "Windows", "requiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA\u2019s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA\u2019s \u201cForensics Triage Requirements\u201d (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.", "shortDescription": "Microsoft Windows Advanced Local Procedure Call contains a heap-based buffer overflow vulnerability that allows an attacker to elevate privileges locally.", "vendorProject": "Microsoft", "vulnerabilityName": "Microsoft Windows Heap-Based Buffer Overflow Vulnerability"}, "epss": {"cve": "CVE-2026-85880", "date": "2026-09-20", "epss": "0.00572", "percentile": "0.46036"}, "microsoft_vex": {"current_release_date": "2026-09-16T07:00:00.000Z", "cve": "CVE-2026-85880", "id": "msrc_CVE-2026-85880", "initial_release_date": "2026-09-08T07:00:00.000Z", "product_status:fixed": "20", "product_status:known_affected": "20", "source": "Microsoft CSAF VEX", "status": "final", "title": "Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability", "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-85880.json", "version": "2"}, "nvd": "{\"cve\":{\"id\":\"CVE-2026-85880\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2026-09-08T18:21:14.087\",\"lastModified\":\"2026-09-09T05:18:19.193\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.\"}],\"affected\":[{\"source\":\"secure@microsoft.com\",\"affectedData\":[{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1607\",\"platforms\":[\"32-bit Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.14393.0\",\"lessThan\":\"10.0.14393.9512\",\"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\":\"10.0.17763.9245\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 21H2\",\"platforms\":[\"32-bit Systems\",\"ARM64-based Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.19044.0\",\"lessThan\":\"10.0.19044.7725\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 22H2\",\"platforms\":[\"32-bit Systems\",\"ARM64-based Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.19045.0\",\"lessThan\":\"10.0.19045.7725\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2012\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"6.2.9200.0\",\"lessThan\":\"6.2.9200.26349\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2012 (Server Core installation)\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"6.2.9200.0\",\"lessThan\":\"6.2.9200.26349\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2012 R2\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"6.3.9600.0\",\"lessThan\":\"6.3.9600.23397\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2012 R2 (Server Core installation)\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"6.3.9600.0\",\"lessThan\":\"6.3.9600.23397\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2016\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.14393.0\",\"lessThan\":\"10.0.14393.9512\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2016 (Server Core installation)\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.14393.0\",\"lessThan\":\"10.0.14393.9512\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2019\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.17763.0\",\"lessThan\":\"10.0.17763.9245\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2019 (Server Core installation)\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.17763.0\",\"lessThan\":\"10.0.17763.9245\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2022\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.20348.0\",\"lessThan\":\"10.0.20348.5622\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-09-08T00:00:00+00:00\",\"id\":\"CVE-2026-85880\",\"options\":[{\"exploitation\":\"active\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"cisaExploitAdd\":\"2026-09-08\",\"cisaActionDue\":\"2026-09-22\",\"cisaRequiredAction\":\"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA\u2019s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA\u2019s \u201cForensics Triage Requirements\u201d (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.\",\"cisaVulnerabilityName\":\"Microsoft Windows Heap-Based Buffer Overflow Vulnerability\",\"weaknesses\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-122\"},{\"lang\":\"en\",\"value\":\"CWE-908\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*\",\"versionEndExcluding\":\"10.0.14393.9512\",\"matchCriteriaId\":\"F5BC051B-C14F-43DF-B3A2-A32EE0DDC142\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*\",\"versionEndExcluding\":\"10.0.14393.9512\",\"matchCriteriaId\":\"D8DA8FA6-35F6-4E0F-A9C0-37CB88186C5B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*\",\"versionEndExcluding\":\"10.0.17763.9245\",\"matchCriteriaId\":\"81786843-7838-4C74-AEA6-E64B6B354387\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*\",\"versionEndExcluding\":\"10.0.17763.9245\",\"matchCriteriaId\":\"D5E29D31-09E1-4C19-AAB0-191AA960C778\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*\",\"versionEndExcluding\":\"10.0.19044.7725\",\"matchCriteriaId\":\"26BFC889-B503-48BF-9D82-5B3043D9A6B3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*\",\"versionEndExcluding\":\"10.0.19044.7725\",\"matchCriteriaId\":\"E6F2C029-D78A-4FAA-B2E8-FD79C2CABC32\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*\",\"versionEndExcluding\":\"10.0.19044.7725\",\"matchCriteriaId\":\"0B423BD2-DDDC-4869-9B98-3275F53B92F1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*\",\"versionEndExcluding\":\"10.0.19045.7725\",\"matchCriteriaId\":\"254EF7C4-707D-4480-BC27-56F64175A9AD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*\",\"versionEndExcluding\":\"10.0.19045.7725\",\"matchCriteriaId\":\"B318C958-84F6-4E33-A95C-6E95C7E286EB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*\",\"versionEndExcluding\":\"10.0.19045.7725\",\"matchCriteriaId\":\"9828DC67-F252-4E2B-AFE9-C404BAF414E0\"},{\"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:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.14393.9512\",\"matchCriteriaId\":\"C7CF508B-369A-4854-97BF-EE90E0A5BF7B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.17763.9245\",\"matchCriteriaId\":\"14138B1B-9554-4B1D-84C6-485FB9763DA4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.20348.5622\",\"matchCriteriaId\":\"496A12F9-40BF-4A40-948B-BDB1C5D17DCB\"}]}]}],\"references\":[{\"url\":\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85880\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85880\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"US Government Resource\"]}]}}", "vulnrichment": {"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-85880\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-08T18:44:18.362923Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2026-09-08\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85880\"}}}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85880\", \"tags\": [\"government-resource\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-09-08T17:39:23.321Z\"}, \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-09-08T00:00:00.000Z\", \"value\": \"CVE-2026-85880 added to CISA KEV\"}]}], \"cna\": {\"title\": \"Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability\", \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C\"}, \"scenarios\": [{\"lang\": \"en-US\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 1607\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.14393.0\", \"lessThan\": \"10.0.14393.9512\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 1809\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.17763.0\", \"lessThan\": \"10.0.17763.9245\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 21H2\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.19044.0\", \"lessThan\": \"10.0.19044.7725\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"ARM64-based Systems\", \"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 22H2\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.19045.0\", \"lessThan\": \"10.0.19045.7725\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"ARM64-based Systems\", \"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Windows Server 2012\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.2.9200.0\", \"lessThan\": \"6.2.9200.26349\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Windows Server 2012 (Server Core installation)\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.2.9200.0\", \"lessThan\": \"6.2.9200.26349\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Windows Server 2012 R2\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.3.9600.0\", \"lessThan\": \"6.3.9600.23397\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Windows Server 2012 R2 (Server Core installation)\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.3.9600.0\", \"lessThan\": \"6.3.9600.23397\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Windows Server 2016\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.14393.0\", \"lessThan\": \"10.0.14393.9512\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Windows Server 2016 (Server Core installation)\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.14393.0\", \"lessThan\": \"10.0.14393.9512\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Windows Server 2019\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.17763.0\", \"lessThan\": \"10.0.17763.9245\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Windows Server 2019 (Server Core installation)\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.17763.0\", \"lessThan\": \"10.0.17763.9245\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Windows Server 2022\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.20348.0\", \"lessThan\": \"10.0.20348.5622\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}], \"datePublic\": \"2026-09-08T14:00:00.000Z\", \"references\": [{\"url\": \"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85880\", \"name\": \"Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability\", \"tags\": [\"vendor-advisory\", \"patch\"]}], \"descriptions\": [{\"lang\": \"en-US\", \"value\": \"Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en-US\", \"type\": \"CWE\", \"cweId\": \"CWE-122\", \"description\": \"CWE-122: Heap-based Buffer Overflow\"}, {\"lang\": \"en-US\", \"type\": \"CWE\", \"cweId\": \"CWE-908\", \"description\": \"CWE-908: Use of Uninitialized Resource\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*\", \"vulnerable\": true, \"versionEndExcluding\": \"10.0.17763.9245\", \"versionStartIncluding\": \"10.0.17763.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"10.0.17763.9245\", \"versionStartIncluding\": \"10.0.17763.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"10.0.17763.9245\", \"versionStartIncluding\": \"10.0.17763.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"10.0.20348.5622\", \"versionStartIncluding\": \"10.0.20348.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*\", \"vulnerable\": true, \"versionEndExcluding\": \"10.0.19044.7725\", \"versionStartIncluding\": \"10.0.19044.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:*\", \"vulnerable\": true, \"versionEndExcluding\": \"10.0.19045.7725\", \"versionStartIncluding\": \"10.0.19045.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*\", \"vulnerable\": true, \"versionEndExcluding\": \"10.0.14393.9512\", \"versionStartIncluding\": \"10.0.14393.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"10.0.14393.9512\", \"versionStartIncluding\": \"10.0.14393.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"10.0.14393.9512\", \"versionStartIncluding\": \"10.0.14393.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2.9200.26349\", \"versionStartIncluding\": \"6.2.9200.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2.9200.26349\", \"versionStartIncluding\": \"6.2.9200.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.3.9600.23397\", \"versionStartIncluding\": \"6.3.9600.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.3.9600.23397\", \"versionStartIncluding\": \"6.3.9600.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"shortName\": \"microsoft\", \"dateUpdated\": \"2026-09-16T21:59:41.849Z\"}}}", "cveMetadata": "{\"cveId\": \"CVE-2026-85880\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-16T21:59:41.849Z\", \"dateReserved\": \"2026-09-04T18:18:19.326Z\", \"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"datePublished\": \"2026-09-08T17:14:21.465Z\", \"assignerShortName\": \"microsoft\"}", "dataType": "CVE_RECORD", "dataVersion": "5.2"}}}