{ "document": { "acknowledgments": [ { "names": [ "Anonymous" ] } ], "aggregate_severity": { "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Public", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en-US", "notes": [ { "category": "general", "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle", "title": "Additional Resources" }, { "category": "legal_disclaimer", "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.", "title": "Disclaimer" }, { "category": "general", "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.", "title": "Customer Action" } ], "publisher": { "category": "vendor", "contact_details": "secure@microsoft.com", "name": "Microsoft Security Response Center", "namespace": "https://msrc.microsoft.com" }, "references": [ { "category": "self", "summary": "CVE-2025-32709 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability - HTML", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-32709" }, { "category": "self", "summary": "CVE-2025-32709 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability - CSAF", "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-32709.json" }, { "category": "external", "summary": "Microsoft Exploitability Index", "url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1" }, { "category": "external", "summary": "Microsoft Support Lifecycle", "url": "https://support.microsoft.com/lifecycle" }, { "category": "external", "summary": "Common Vulnerability Scoring System", "url": "https://www.first.org/cvss" } ], "title": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability", "tracking": { "current_release_date": "2025-05-15T07:00:00.000Z", "generator": { "date": "2026-02-13T19:20:46.600Z", "engine": { "name": "MSRC Generator", "version": "1.0" } }, "id": "msrc_CVE-2025-32709", "initial_release_date": "2025-05-13T07:00:00.000Z", "revision_history": [ { "date": "2025-05-13T07:00:00.000Z", "legacy_version": "1", "number": "1", "summary": "Information published." }, { "date": "2025-05-15T07:00:00.000Z", "legacy_version": "2", "number": "2", "summary": "In the Security Updates table, added all supported editions of Windows Server 2008 and Windows Server 2008 R2 as they are affected by this vulnerability. Customers running these versions of Windows Server please note that to be protected from this vulnerability you need to install the out-of-band updates as follows: \n\n* Windows Server 2008 R2: KB5061195 (Security-only update)\n* Windows Server 2008 R2: KB5061196 (Monthly Rollup)\n* Windows Server 2008: KB5061197 (Security-only update)\n* Windows Server 2008: KB5061198 (Monthly Rollup)\n\nPlease see the Security Updates table and FAQs section for more information." } ], "status": "final", "version": "2" } }, "product_tree": { "branches": [ { "branches": [ { "category": "product_version_range", "name": "<10.0.17763.7314", "product": { "name": "Windows 10 Version 1809 for 32-bit Systems <10.0.17763.7314", "product_id": "21" } }, { "category": "product_version", "name": "10.0.17763.7314", "product": { "name": "Windows 10 Version 1809 for 32-bit Systems 10.0.17763.7314", "product_id": "11568" } } ], "category": "product_name", "name": "Windows 10 Version 1809 for 32-bit Systems" }, { 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"name": "<6.3.9600.22577", "product": { "name": "Windows Server 2012 R2 (Server Core installation) <6.3.9600.22577", "product_id": "28" } }, { "category": "product_version", "name": "6.3.9600.22577", "product": { "name": "Windows Server 2012 R2 (Server Core installation) 6.3.9600.22577", "product_id": "10543" } } ], "category": "product_name", "name": "Windows Server 2012 R2 (Server Core installation)" } ] }, "vulnerabilities": [ { "cve": "CVE-2025-32709", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "notes": [ { "category": "general", "text": "Microsoft", "title": "Assigning CNA" }, { "category": "faq", "text": "An attacker who successfully exploited this vulnerability could gain administrator privileges.", "title": "What privileges could be gained by an attacker who successfully exploited the vulnerability?" }, { "category": "faq", "text": "The protections for this vulnerability are not included in the following May 2025 monthly rollup or security-only updates released on May 13, 2025:\nWindows Server 2008 R2: KB5058454 (Security-only update), Windows Server 2008 R2: KB5058430 (Monthly Rollup), Windows Server 2008: KB5058429 (Security-only update), Windows Server 2008: KB5058449 (Monthly Rollup)\nInstead, customers running these versions of Windows Server need to install the following Out-of-Band (OOB) updates, released also on May 13, 2025, as applicable:\nWindows Server 2008 R2: KB5061195 (Security-only update), Windows Server 2008 R2: KB5061196 (Monthly Rollup), Windows Server 2008: KB5061197 (Security-only update), Windows Server 2008: KB5061198 (Monthly Rollup)", "title": "I am running Windows Server 2008 or Windows Server 2008 R2. How do I protect my system from this vulnerability?" } ], "product_status": { "fixed": [ "9312", "9318", "9344", "10049", "10051", "10287", "10378", "10379", "10483", "10543", "10729", "10735", "10816", "10852", "10853", "10855", "11568", "11569", "11571", "11572", "11923", "11924", "11929", "11930", "11931", "12085", "12086", "12097", "12098", "12099", "12242", "12243", "12244", "12389", "12390", "12436", "12437" ], "known_affected": [ "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37" ] }, "references": [ { "category": "self", "summary": "CVE-2025-32709 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability - HTML", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-32709" }, { "category": "self", "summary": "CVE-2025-32709 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability - CSAF", "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-32709.json" } ], "remediations": [ { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "10.0.17763.7314:Security Update:https://support.microsoft.com/help/5058392", "product_ids": [ "21", "20", "19", "18" ], "url": "https://support.microsoft.com/help/5058392" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "10.0.20348.3692:Security Update:https://support.microsoft.com/help/5058385", "product_ids": [ "17", "16" ], "url": "https://support.microsoft.com/help/5058385" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "10.0.20348.3630:SecurityHotpatchUpdate:https://support.microsoft.com/help/5058500", "product_ids": [ "17" ], "url": "https://support.microsoft.com/help/5058500" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "10.0.19044.5854:Security Update:https://support.microsoft.com/help/5058379", "product_ids": [ "15", "14", "13" ], "url": "https://support.microsoft.com/help/5058379" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "10.0.22621.5335:Security Update:https://support.microsoft.com/help/5058405", "product_ids": [ "12", "11" ], "url": "https://support.microsoft.com/help/5058405" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "10.0.19045.5854:Security Update:https://support.microsoft.com/help/5058379", "product_ids": [ "10", "9", "8" ], "url": "https://support.microsoft.com/help/5058379" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "10.0.26100.4061:Security Update:https://support.microsoft.com/help/5058411", "product_ids": [ "1", "4", "3", "2" ], "url": "https://support.microsoft.com/help/5058411" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "10.0.26100.3981:SecurityHotpatchUpdate:https://support.microsoft.com/help/5058497", "product_ids": [ "1", "4", "3", "2" ], "url": "https://support.microsoft.com/help/5058497" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "10.0.22631.5335:Security Update:https://support.microsoft.com/help/5058405", "product_ids": [ "7", "6" ], "url": "https://support.microsoft.com/help/5058405" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "10.0.25398.1611:Security Update:https://support.microsoft.com/help/5058384", "product_ids": [ "5" ], "url": "https://support.microsoft.com/help/5058384" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "10.0.10240.21014:Security Update:https://support.microsoft.com/help/5058387", "product_ids": [ "27", "26" ], "url": "https://support.microsoft.com/help/5058387" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "10.0.14393.8066:Security Update:https://support.microsoft.com/help/5058383", "product_ids": [ "24", "23", "25", "22" ], "url": "https://support.microsoft.com/help/5058383" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "6.0.6003.23317:Monthly Rollup:https://support.microsoft.com/help/5061198", "product_ids": [ "37", "32", "36", "35" ], "url": "https://support.microsoft.com/help/5061198" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "6.0.6003.23317:Security Only:https://support.microsoft.com/help/5061197", "product_ids": [ "37", "32", "36", "35" ], "url": "https://support.microsoft.com/help/5061197" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "6.1.7601.27730:Monthly Rollup:https://support.microsoft.com/help/5061196", "product_ids": [ "33", "34" ], "url": "https://support.microsoft.com/help/5061196" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "6.1.7601.27730:Security Update", "product_ids": [ "33", "34" ], "url": "" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "6.2.9200.25475:Monthly Rollup:https://support.microsoft.com/help/5058451", "product_ids": [ "31", "30" ], "url": "https://support.microsoft.com/help/5058451" }, { "category": "vendor_fix", "date": "2025-05-13T07:00:00.000Z", "details": "6.3.9600.22577:Monthly Rollup:https://support.microsoft.com/help/5058403", "product_ids": [ "29", "28" ], "url": "https://support.microsoft.com/help/5058403" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "environmentalsScore": 0.0, "exploitCodeMaturity": "UNPROVEN", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "remediationLevel": "OFFICIAL_FIX", "reportConfidence": "CONFIRMED", "scope": "UNCHANGED", "temporalScore": 6.8, "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C", "version": "3.1" }, "products": [ "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37" ] } ], "threats": [ { "category": "impact", "details": "Elevation of Privilege" }, { "category": "exploit_status", "details": "Publicly Disclosed:No;Exploited:Yes;Latest Software Release:Exploitation Detected" } ], "title": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability" } ] }