{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-40369", "tracking": { "current_release_date": "2026-05-13T15:21:51.472088Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-40369", "initial_release_date": "2026-05-12T07:30:53.782250Z", "revision_history": [ { "date": "2026-05-12T07:30:53.782250Z", "number": "1", "summary": "NCSC Score created." }, { "date": "2026-05-12T17:41:38.812924Z", "number": "2", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (5).| References created (1).| CWES updated (1)." }, { "date": "2026-05-12T17:41:44.920062Z", "number": "3", "summary": "NCSC Score updated." }, { "date": "2026-05-12T18:32:05.644832Z", "number": "4", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (8).| Product Threats created (16).| Product Remediations created (14).| CWES updated (1).| Exploitable created." }, { "date": "2026-05-12T18:32:09.883898Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-05-12T18:33:19.743996Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)." }, { "date": "2026-05-12T18:33:21.537757Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-05-13T01:03:40.736414Z", "number": "8", "summary": "Source connected.| CVE status created. (valid)| News created (1)." }, { "date": "2026-05-13T01:03:42.266563Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-05-13T05:40:06.803031Z", "number": "10", "summary": "Unknown change." }, { "date": "2026-05-13T06:50:37.088757Z", "number": "11", "summary": "Source connected.| CVE status created. (valid)" }, { "date": "2026-05-13T09:29:41.721299Z", "number": "12", "summary": "Source connected.| CVE status created. (valid)| Products connected (16).| References created (3)." }, { "date": "2026-05-13T09:29:54.288804Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-05-13T15:21:31.620789Z", "number": "14", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-05-13T15:21:41.933543Z", "number": "15", "summary": "NCSC Score updated." } ], "status": "interim", "version": "15" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-6042627", "product_identification_helper": { "cpe": "cpe:/a:microsoft:windows_admin_center:in_azure_portal" } } } ], "category": "product_name", "name": "Microsoft Windows Admin Center" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-1429705", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_server_2012:-" } } } ], "category": "product_name", "name": "Microsoft Windows Server 2012" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-1429704", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_server_2012_r2:-" } } } ], "category": "product_name", "name": "Microsoft Windows Server 2012 R2" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-1429709", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_server_2016:-" } } } ], "category": "product_name", "name": "Microsoft Windows Server 2016" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-1429706", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_server_2019:-" } } } ], "category": "product_name", "name": "Microsoft Windows Server 2019" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-1429707", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_server_2022:-" } } } ], "category": "product_name", "name": "Microsoft Windows Server 2022" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-2908521", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_server_2025:-" } } } ], "category": "product_name", "name": "Microsoft Windows Server 2025" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/version 1607", "product": { "name": "vers:unknown/version 1607", "product_id": "CSAFPID-1189227", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_10:version_1607" } } }, { "category": "product_version_range", "name": "vers:unknown/version 1809", "product": { "name": "vers:unknown/version 1809", "product_id": "CSAFPID-1189225", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_10:version_1809" } } }, { "category": "product_version_range", "name": "vers:unknown/version 21h2", "product": { "name": "vers:unknown/version 21h2", "product_id": "CSAFPID-1189232", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_10:version_21h2" } } }, { "category": "product_version_range", "name": "vers:unknown/version 22h2", "product": { "name": "vers:unknown/version 22h2", "product_id": "CSAFPID-1189233", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_10:version_22h2" } } } ], "category": "product_name", "name": "Windows 10" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/version 23h2", "product": { "name": "vers:unknown/version 23h2", "product_id": "CSAFPID-1189228", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_11:version_23h2" } } }, { "category": "product_version_range", "name": "vers:unknown/version 24h2", "product": { "name": "vers:unknown/version 24h2", "product_id": "CSAFPID-1305167", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_11:version_24h2" } } }, { "category": "product_version_range", "name": "vers:unknown/version 25h2", "product": { "name": "vers:unknown/version 25h2", "product_id": "CSAFPID-5046795", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_11:version_25h2" } } }, { "category": "product_version_range", "name": "vers:unknown/version 26h1", "product": { "name": "vers:unknown/version 26h1", "product_id": "CSAFPID-5592468" } } ], "category": "product_name", "name": "Windows 11" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/10.0.26100.0|<10.0.26100.8457", "product": { "name": "vers:unknown/10.0.26100.0|<10.0.26100.8457", "product_id": "CSAFPID-6981213" } } ], "category": "product_name", "name": "Windows 11 Version 24H2" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/10.0.26100.8457", "product": { "name": "vers:microsoft/10.0.26100.8457", "product_id": "CSAFPID-6981468", "product_identification_helper": { "cpe": "cpe:2.3:o:microsoft:windows_11_24H2:10.0.26100.8457:*:*:*:*:*:arm64:*" } } } ], "category": "product_name", "name": "Windows 11 Version 24H2 for ARM64-based Systems" }, { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/10.0.26100.8457", "product": { "name": "vers:microsoft/10.0.26100.8457", "product_id": "CSAFPID-6981469", "product_identification_helper": { "cpe": "cpe:2.3:o:microsoft:windows_11_24H2:10.0.26100.8457:*:*:*:*:*:x64:*" } } } ], "category": "product_name", "name": "Windows 11 Version 24H2 for x64-based Systems" }, { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/10.0.26200.8457", "product": { "name": "vers:microsoft/10.0.26200.8457", "product_id": "CSAFPID-6981463", "product_identification_helper": { "cpe": "cpe:2.3:o:microsoft:windows_11_25H2:10.0.26200.8457:*:*:*:*:*:arm64:*" } } } ], "category": "product_name", "name": "Windows 11 Version 25H2 for ARM64-based Systems" }, { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/10.0.26200.8457", "product": { "name": "vers:microsoft/10.0.26200.8457", "product_id": "CSAFPID-6981464", "product_identification_helper": { "cpe": "cpe:2.3:o:microsoft:windows_11_2H2:10.0.26200.8457:*:*:*:*:*:x64:*" } } } ], "category": "product_name", "name": "Windows 11 Version 25H2 for x64-based Systems" }, { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/10.0.28000.2113", "product": { "name": "vers:microsoft/10.0.28000.2113", "product_id": "CSAFPID-6981472", "product_identification_helper": { "cpe": "cpe:2.3:o:microsoft:windows_11_26H1:10.0.28000.2113:*:*:*:*:*:arm64:*" } } } ], "category": "product_name", "name": "Windows 11 Version 26H1 for ARM64-based Systems" }, { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/10.0.28000.2113", "product": { "name": "vers:microsoft/10.0.28000.2113", "product_id": "CSAFPID-6981471", "product_identification_helper": { "cpe": "cpe:2.3:o:microsoft:windows_11_26H1:10.0.28000.2113:*:*:*:*:*:x64:*" } } } ], "category": "product_name", "name": "Windows 11 version 26H1 for x64-based Systems" }, { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/10.0.26100.32860", "product": { "name": "vers:microsoft/10.0.26100.32860", "product_id": "CSAFPID-6981470", "product_identification_helper": { "cpe": "cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32860:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "Windows Server 2025" }, { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/10.0.26100.32860", "product": { "name": "vers:microsoft/10.0.26100.32860", "product_id": "CSAFPID-6981462", "product_identification_helper": { "cpe": "cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32860:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "Windows Server 2025 (Server Core installation)" } ], "category": "product_family", "name": "Windows" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/10.0.26200.0|<10.0.26200.8457", "product": { "name": "vers:unknown/10.0.26200.0|<10.0.26200.8457", "product_id": "CSAFPID-6981214" } } ], "category": "product_name", "name": "Windows 11 Version 25H2" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/10.0.28000.0|<10.0.28000.2113", "product": { "name": "vers:unknown/10.0.28000.0|<10.0.28000.2113", "product_id": "CSAFPID-6981215" } } ], "category": "product_name", "name": "Windows 11 version 26H1" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/23h2 edition", "product": { "name": "vers:unknown/23h2 edition", "product_id": "CSAFPID-1189229", "product_identification_helper": { "cpe": "cpe:/o:microsoft:windows_server_2022:23h2_edition" } } } ], "category": "product_name", "name": "Windows Server 2022" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/10.0.26100.0|<10.0.26100.32860", "product": { "name": "vers:unknown/10.0.26100.0|<10.0.26100.32860", "product_id": "CSAFPID-6981204" } } ], "category": "product_name", "name": "Windows Server 2025" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/10.0.26100.0|<10.0.26100.32860", "product": { "name": "vers:unknown/10.0.26100.0|<10.0.26100.32860", "product_id": "CSAFPID-6981205" } } ], "category": "product_name", "name": "Windows Server 2025 (Server Core installation)" } ], "category": "vendor", "name": "Microsoft" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-40369", "cwe": { "id": "CWE-822", "name": "Untrusted Pointer Dereference" }, "notes": [ { "category": "description", "text": "Untrusted pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/40xxx/CVE-2026-40369.json" }, { "category": "description", "text": "

Untrusted pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.

\n", "title": "microsoft - https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-May" }, { "category": "description", "text": "Untrusted pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-40369" }, { "category": "other", "text": "0.00031", "title": "EPSS" }, { "category": "other", "text": "6.4", "title": "NCSC Score" }, { "category": "other", "text": "There is product data available from source Certbundde, Is related to (a version of) product Windows, VENDOR FIX as product remediation category, Is related to (a version of) product Windows Server, There is news data available from source Bleepingcomputer", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "There is cwe data available from source Nvd", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-6981204", "CSAFPID-6981205", "CSAFPID-6981213", "CSAFPID-6981214", "CSAFPID-6981215", "CSAFPID-6981462", "CSAFPID-6981463", "CSAFPID-6981464", "CSAFPID-6981468", "CSAFPID-6981469", "CSAFPID-6981470", "CSAFPID-6981471", "CSAFPID-6981472", "CSAFPID-1189225", "CSAFPID-1189227", "CSAFPID-1189228", "CSAFPID-1189229", "CSAFPID-1189232", "CSAFPID-1189233", "CSAFPID-1305167", "CSAFPID-1429704", "CSAFPID-1429705", "CSAFPID-1429706", "CSAFPID-1429707", "CSAFPID-1429709", "CSAFPID-2908521", "CSAFPID-5046795", "CSAFPID-5592468", "CSAFPID-6042627" ] }, "references": [ { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/40xxx/CVE-2026-40369.json" }, { "category": "external", "summary": "Source - microsoft", "url": "https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-May" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-40369" }, { "category": "external", "summary": "Source - bleepingcomputer", "url": "https://www.bleepingcomputer.com/news/microsoft/microsoft-may-2026-patch-tuesday-fixes-120-flaws-no-zero-days/" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://advisories.ncsc.nl/advisory?id=NCSC-2026-0141" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1489.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "News - bleepingcomputer", "url": "https://www.bleepingcomputer.com/news/microsoft/microsoft-may-2026-patch-tuesday-fixes-120-flaws-no-zero-days/" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40369" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1489.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1489" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://msrc.microsoft.com/update-guide/" } ], "remediations": [ { "category": "vendor_fix", "details": "5087423", "product_ids": [ "CSAFPID-6981462", "CSAFPID-6981470" ], "url": "https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5087423" }, { "category": "vendor_fix", "details": "5087539", "product_ids": [ "CSAFPID-6981462", "CSAFPID-6981470" ], "url": "https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5087539" }, { "category": "vendor_fix", "details": "5089466", "product_ids": [ "CSAFPID-6981463", "CSAFPID-6981464", "CSAFPID-6981468", "CSAFPID-6981469" ], "url": "https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5089466" }, { "category": "vendor_fix", "details": "5089549", "product_ids": [ "CSAFPID-6981463", "CSAFPID-6981464", "CSAFPID-6981468", "CSAFPID-6981469" ], "url": "https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5089549" }, { "category": "vendor_fix", "details": "5089548", "product_ids": [ "CSAFPID-6981471", "CSAFPID-6981472" ], "url": "https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5089548" } ], "scores": [ { "cvss_v3": { "version": "3.1", "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", "baseScore": 7.8, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-1189225", "CSAFPID-1189227", "CSAFPID-1189228", "CSAFPID-1189229", "CSAFPID-1189232", "CSAFPID-1189233", "CSAFPID-1305167", "CSAFPID-1429704", "CSAFPID-1429705", "CSAFPID-1429706", "CSAFPID-1429707", "CSAFPID-1429709", "CSAFPID-2908521", "CSAFPID-5046795", "CSAFPID-5592468", "CSAFPID-6042627", "CSAFPID-6981204", "CSAFPID-6981205", "CSAFPID-6981213", "CSAFPID-6981214", "CSAFPID-6981215", "CSAFPID-6981462", "CSAFPID-6981463", "CSAFPID-6981464", "CSAFPID-6981468", "CSAFPID-6981469", "CSAFPID-6981470", "CSAFPID-6981471", "CSAFPID-6981472" ] } ], "threats": [ { "category": "exploit_status", "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation More Likely", "product_ids": [ "CSAFPID-6981462", "CSAFPID-6981463", "CSAFPID-6981464", "CSAFPID-6981468", "CSAFPID-6981469", "CSAFPID-6981470", "CSAFPID-6981471", "CSAFPID-6981472" ] }, { "category": "impact", "details": "Elevation of Privilege", "product_ids": [ "CSAFPID-6981462", "CSAFPID-6981463", "CSAFPID-6981464", "CSAFPID-6981468", "CSAFPID-6981469", "CSAFPID-6981470", "CSAFPID-6981471", "CSAFPID-6981472" ] }, { "category": "exploit_status", "details": "exploited" } ], "title": "CVE-2026-40369" } ] }