{"history":[{"alert":0,"cve":"CVE-2025-21391","id":22741,"kind":"epss","observed_at":1794500401,"payload":"{\"date\": \"2026-11-12\", \"epss\": 0.02284, \"percentile\": 0.83411}"},{"alert":0,"cve":"CVE-2025-21391","id":20361,"kind":"epss","observed_at":1794327601,"payload":"{\"date\": \"2026-11-10\", \"epss\": 0.02284, \"percentile\": 0.83305}"},{"alert":0,"cve":"CVE-2025-21391","id":18330,"kind":"epss","observed_at":1794241201,"payload":"{\"date\": \"2026-11-09\", \"epss\": 0.02284, \"percentile\": 0.83285}"},{"alert":0,"cve":"CVE-2025-21391","id":16394,"kind":"epss","observed_at":1794154800,"payload":"{\"date\": \"2026-11-08\", \"epss\": 0.02284, \"percentile\": 0.83276}"},{"alert":0,"cve":"CVE-2025-21391","id":14372,"kind":"epss","observed_at":1794068402,"payload":"{\"date\": \"2026-11-07\", \"epss\": 0.02284, \"percentile\": 0.83264}"},{"alert":0,"cve":"CVE-2025-21391","id":12154,"kind":"epss","observed_at":1793982001,"payload":"{\"date\": \"2026-11-06\", \"epss\": 0.02284, \"percentile\": 0.83239}"},{"alert":0,"cve":"CVE-2025-21391","id":10140,"kind":"epss","observed_at":1793938800,"payload":"{\"date\": \"2026-11-05\", \"epss\": 0.02284, \"percentile\": 0.83226}"},{"alert":0,"cve":"CVE-2025-21391","id":7689,"kind":"epss","observed_at":1793809200,"payload":"{\"date\": \"2026-11-04\", \"epss\": 0.02284, \"percentile\": 0.83212}"},{"alert":1,"cve":"CVE-2025-21391","id":5958,"kind":"cna","observed_at":1793744401,"payload":"{\"containers\": {\"adp\": [{\"metrics\": [{\"other\": {\"content\": {\"id\": \"CVE-2025-21391\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"role\": \"CISA Coordinator\", \"timestamp\": \"2025-02-13T04:55:11.910119Z\", \"version\": \"2.0.3\"}, \"type\": \"ssvc\"}}, {\"other\": {\"content\": {\"dateAdded\": \"2025-02-11\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21391\"}, \"type\": \"kev\"}}], \"providerMetadata\": {\"dateUpdated\": \"2026-02-26T19:09:04.110Z\", \"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-2025-21391\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2025-02-11T00:00:00.000Z\", \"value\": \"CVE-2025-21391 added to CISA KEV\"}], \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"affected\": [{\"platforms\": [\"32-bit Systems\", \"x64-based Systems\"], \"product\": \"Windows 10 Version 1507\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.10240.20915\", \"status\": \"affected\", \"version\": \"10.0.10240.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"32-bit Systems\", \"x64-based Systems\"], \"product\": \"Windows 10 Version 1607\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.14393.7785\", \"status\": \"affected\", \"version\": \"10.0.14393.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"32-bit Systems\", \"x64-based Systems\"], \"product\": \"Windows 10 Version 1809\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.17763.6893\", \"status\": \"affected\", \"version\": \"10.0.17763.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"32-bit Systems\", \"ARM64-based Systems\", \"x64-based Systems\"], \"product\": \"Windows 10 Version 21H2\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.19044.5487\", \"status\": \"affected\", \"version\": \"10.0.19044.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"32-bit Systems\", \"ARM64-based Systems\", \"x64-based Systems\"], \"product\": \"Windows 10 Version 22H2\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.19045.5487\", \"status\": \"affected\", \"version\": \"10.0.19045.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"ARM64-based Systems\", \"x64-based Systems\"], \"product\": \"Windows 11 version 22H2\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.22621.4890\", \"status\": \"affected\", \"version\": \"10.0.22621.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"ARM64-based Systems\"], \"product\": \"Windows 11 version 22H3\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.22631.4890\", \"status\": \"affected\", \"version\": \"10.0.22631.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"x64-based Systems\"], \"product\": \"Windows 11 Version 23H2\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.22631.4890\", \"status\": \"affected\", \"version\": \"10.0.22631.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"ARM64-based Systems\", \"x64-based Systems\"], \"product\": \"Windows 11 Version 24H2\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.26100.3194\", \"status\": \"affected\", \"version\": \"10.0.26100.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"x64-based Systems\"], \"product\": \"Windows Server 2016\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.14393.7785\", \"status\": \"affected\", \"version\": \"10.0.14393.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"x64-based Systems\"], \"product\": \"Windows Server 2016 (Server Core installation)\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.14393.7785\", \"status\": \"affected\", \"version\": \"10.0.14393.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"x64-based Systems\"], \"product\": \"Windows Server 2019\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.17763.6893\", \"status\": \"affected\", \"version\": \"10.0.17763.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"x64-based Systems\"], \"product\": \"Windows Server 2019 (Server Core installation)\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.17763.6893\", \"status\": \"affected\", \"version\": \"10.0.17763.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"x64-based Systems\"], \"product\": \"Windows Server 2022\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.20348.3207\", \"status\": \"affected\", \"version\": \"10.0.20348.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"x64-based Systems\"], \"product\": \"Windows Server 2022, 23H2 Edition (Server Core installation)\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.25398.1425\", \"status\": \"affected\", \"version\": \"10.0.25398.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"x64-based Systems\"], \"product\": \"Windows Server 2025\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.26100.3194\", \"status\": \"affected\", \"version\": \"10.0.26100.0\", \"versionType\": \"custom\"}]}, {\"platforms\": [\"x64-based Systems\"], \"product\": \"Windows Server 2025 (Server Core installation)\", \"vendor\": \"Microsoft\", \"versions\": [{\"lessThan\": \"10.0.26100.3194\", \"status\": \"affected\", \"version\": \"10.0.26100.0\", \"versionType\": \"custom\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*\", \"versionEndExcluding\": \"10.0.17763.6893\", \"versionStartIncluding\": \"10.0.17763.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.17763.6893\", \"versionStartIncluding\": \"10.0.17763.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.17763.6893\", \"versionStartIncluding\": \"10.0.17763.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.20348.3207\", \"versionStartIncluding\": \"10.0.20348.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*\", \"versionEndExcluding\": \"10.0.19044.5487\", \"versionStartIncluding\": \"10.0.19044.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_11_22H2:*:*:*:*:*:*:arm64:*\", \"versionEndExcluding\": \"10.0.22621.4890\", \"versionStartIncluding\": \"10.0.22621.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:*\", \"versionEndExcluding\": \"10.0.19045.5487\", \"versionStartIncluding\": \"10.0.19045.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.26100.3194\", \"versionStartIncluding\": \"10.0.26100.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:*\", \"versionEndExcluding\": \"10.0.22631.4890\", \"versionStartIncluding\": \"10.0.22631.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:*\", \"versionEndExcluding\": \"10.0.22631.4890\", \"versionStartIncluding\": \"10.0.22631.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_23h2:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.25398.1425\", \"versionStartIncluding\": \"10.0.25398.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*\", \"versionEndExcluding\": \"10.0.26100.3194\", \"versionStartIncluding\": \"10.0.26100.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.26100.3194\", \"versionStartIncluding\": \"10.0.26100.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*\", \"versionEndExcluding\": \"10.0.10240.20915\", \"versionStartIncluding\": \"10.0.10240.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*\", \"versionEndExcluding\": \"10.0.14393.7785\", \"versionStartIncluding\": \"10.0.14393.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.14393.7785\", \"versionStartIncluding\": \"10.0.14393.0\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.14393.7785\", \"versionStartIncluding\": \"10.0.14393.0\", \"vulnerable\": true}], \"negate\": false, \"operator\": \"OR\"}]}], \"datePublic\": \"2025-02-11T08:00:00.000Z\", \"descriptions\": [{\"lang\": \"en-US\", \"value\": \"Windows Storage Elevation of Privilege Vulnerability\"}], \"metrics\": [{\"cvssV3_1\": {\"baseScore\": 7.1, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:F/RL:O/RC:C\", \"version\": \"3.1\"}, \"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en-US\", \"value\": \"GENERAL\"}]}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-59\", \"description\": \"CWE-59: Improper Link Resolution Before File Access ('Link Following')\", \"lang\": \"en-US\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2026-02-13T19:44:19.224Z\", \"orgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"shortName\": \"microsoft\"}, \"references\": [{\"name\": \"Windows Storage Elevation of Privilege Vulnerability\", \"tags\": [\"vendor-advisory\", \"patch\"], \"url\": \"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21391\"}], \"title\": \"Windows Storage Elevation of Privilege Vulnerability\"}}, \"cveMetadata\": {\"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"assignerShortName\": \"microsoft\", \"cveId\": \"CVE-2025-21391\", \"datePublished\": \"2025-02-11T17:58:17.297Z\", \"dateReserved\": \"2024-12-11T00:29:48.373Z\", \"dateUpdated\": \"2026-02-26T19:09:04.110Z\", \"state\": \"PUBLISHED\"}, \"dataType\": \"CVE_RECORD\", \"dataVersion\": \"5.2\"}"},{"alert":0,"cve":"CVE-2025-21391","id":5466,"kind":"epss","observed_at":1793722800,"payload":"{\"date\": \"2026-11-03\", \"epss\": 0.02284, \"percentile\": 0.83181}"},{"alert":0,"cve":"CVE-2025-21391","id":3248,"kind":"epss","observed_at":1793665375,"payload":"{\"date\": \"2026-11-02\", \"epss\": 0.02284, \"percentile\": 0.8316}"},{"alert":1,"cve":"CVE-2025-21391","id":502,"kind":"kev","observed_at":1793665375,"payload":"{\"cveID\": \"CVE-2025-21391\", \"cwes\": [\"CWE-59\"], \"dateAdded\": \"2025-02-11\", \"dueDate\": \"2025-03-04\", \"forensicTriage\": \"No\", \"knownRansomwareCampaignUse\": \"Unknown\", \"notes\": \"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21391 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21391\", \"product\": \"Windows\", \"requiredAction\": \"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.\", \"shortDescription\": \"Microsoft Windows Storage contains a link following vulnerability that could allow for privilege escalation. This vulnerability could allow an attacker to delete data including data that results in the service being unavailable.\", \"vendorProject\": \"Microsoft\", \"vulnerabilityName\": \"Microsoft Windows Storage Link Following Vulnerability\"}"}],"record":{"affected":[{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1507","vendor":"Microsoft","versions":[{"lessThan":"10.0.10240.20915","status":"affected","version":"10.0.10240.0","versionType":"custom"}]},{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1607","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.7785","status":"affected","version":"10.0.14393.0","versionType":"custom"}]},{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1809","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.6893","status":"affected","version":"10.0.17763.0","versionType":"custom"}]},{"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"product":"Windows 10 Version 21H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19044.5487","status":"affected","version":"10.0.19044.0","versionType":"custom"}]},{"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"product":"Windows 10 Version 22H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19045.5487","status":"affected","version":"10.0.19045.0","versionType":"custom"}]},{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 version 22H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.22621.4890","status":"affected","version":"10.0.22621.0","versionType":"custom"}]},{"platforms":["ARM64-based Systems"],"product":"Windows 11 version 22H3","vendor":"Microsoft","versions":[{"lessThan":"10.0.22631.4890","status":"affected","version":"10.0.22631.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows 11 Version 23H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.22631.4890","status":"affected","version":"10.0.22631.0","versionType":"custom"}]},{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 Version 24H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.3194","status":"affected","version":"10.0.26100.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2016","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.7785","status":"affected","version":"10.0.14393.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2016 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.7785","status":"affected","version":"10.0.14393.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2019","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.6893","status":"affected","version":"10.0.17763.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2019 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.6893","status":"affected","version":"10.0.17763.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2022","vendor":"Microsoft","versions":[{"lessThan":"10.0.20348.3207","status":"affected","version":"10.0.20348.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2022, 23H2 Edition (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.25398.1425","status":"affected","version":"10.0.25398.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2025","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.3194","status":"affected","version":"10.0.26100.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2025 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.3194","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}],"cna":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2025-21391","options":[{"Exploitation":"active"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2025-02-13T04:55:11.910119Z","version":"2.0.3"},"type":"ssvc"}},{"other":{"content":{"dateAdded":"2025-02-11","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21391"},"type":"kev"}}],"providerMetadata":{"dateUpdated":"2026-02-26T19:09:04.110Z","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-2025-21391"}],"timeline":[{"lang":"en","time":"2025-02-11T00:00:00.000Z","value":"CVE-2025-21391 added to CISA KEV"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1507","vendor":"Microsoft","versions":[{"lessThan":"10.0.10240.20915","status":"affected","version":"10.0.10240.0","versionType":"custom"}]},{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1607","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.7785","status":"affected","version":"10.0.14393.0","versionType":"custom"}]},{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1809","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.6893","status":"affected","version":"10.0.17763.0","versionType":"custom"}]},{"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"product":"Windows 10 Version 21H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19044.5487","status":"affected","version":"10.0.19044.0","versionType":"custom"}]},{"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"product":"Windows 10 Version 22H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19045.5487","status":"affected","version":"10.0.19045.0","versionType":"custom"}]},{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 version 22H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.22621.4890","status":"affected","version":"10.0.22621.0","versionType":"custom"}]},{"platforms":["ARM64-based Systems"],"product":"Windows 11 version 22H3","vendor":"Microsoft","versions":[{"lessThan":"10.0.22631.4890","status":"affected","version":"10.0.22631.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows 11 Version 23H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.22631.4890","status":"affected","version":"10.0.22631.0","versionType":"custom"}]},{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 Version 24H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.3194","status":"affected","version":"10.0.26100.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2016","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.7785","status":"affected","version":"10.0.14393.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2016 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.7785","status":"affected","version":"10.0.14393.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2019","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.6893","status":"affected","version":"10.0.17763.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2019 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.6893","status":"affected","version":"10.0.17763.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2022","vendor":"Microsoft","versions":[{"lessThan":"10.0.20348.3207","status":"affected","version":"10.0.20348.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2022, 23H2 Edition (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.25398.1425","status":"affected","version":"10.0.25398.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2025","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.3194","status":"affected","version":"10.0.26100.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2025 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.3194","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*","versionEndExcluding":"10.0.17763.6893","versionStartIncluding":"10.0.17763.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.17763.6893","versionStartIncluding":"10.0.17763.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.17763.6893","versionStartIncluding":"10.0.17763.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.20348.3207","versionStartIncluding":"10.0.20348.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*","versionEndExcluding":"10.0.19044.5487","versionStartIncluding":"10.0.19044.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_11_22H2:*:*:*:*:*:*:arm64:*","versionEndExcluding":"10.0.22621.4890","versionStartIncluding":"10.0.22621.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:*","versionEndExcluding":"10.0.19045.5487","versionStartIncluding":"10.0.19045.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.26100.3194","versionStartIncluding":"10.0.26100.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:*","versionEndExcluding":"10.0.22631.4890","versionStartIncluding":"10.0.22631.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:*","versionEndExcluding":"10.0.22631.4890","versionStartIncluding":"10.0.22631.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_23h2:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.25398.1425","versionStartIncluding":"10.0.25398.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*","versionEndExcluding":"10.0.26100.3194","versionStartIncluding":"10.0.26100.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.26100.3194","versionStartIncluding":"10.0.26100.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*","versionEndExcluding":"10.0.10240.20915","versionStartIncluding":"10.0.10240.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*","versionEndExcluding":"10.0.14393.7785","versionStartIncluding":"10.0.14393.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.14393.7785","versionStartIncluding":"10.0.14393.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.14393.7785","versionStartIncluding":"10.0.14393.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"datePublic":"2025-02-11T08:00:00.000Z","descriptions":[{"lang":"en-US","value":"Windows Storage Elevation of Privilege Vulnerability"}],"metrics":[{"cvssV3_1":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:F/RL:O/RC:C","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-59","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-02-13T19:44:19.224Z","orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","shortName":"microsoft"},"references":[{"name":"Windows Storage Elevation of Privilege Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21391"}],"title":"Windows Storage Elevation of Privilege Vulnerability"}},"cveMetadata":{"assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","assignerShortName":"microsoft","cveId":"CVE-2025-21391","datePublished":"2025-02-11T17:58:17.297Z","dateReserved":"2024-12-11T00:29:48.373Z","dateUpdated":"2026-02-26T19:09:04.110Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"cna_checked":1794198001,"cve":"CVE-2025-21391","description":"Windows Storage Elevation of Privilege Vulnerability","epss":{"date":"2026-11-12","epss":0.02284,"percentile":0.83411},"epss_checked":1794522003,"first_seen":1793665375,"kev":{"cveID":"CVE-2025-21391","cwes":["CWE-59"],"dateAdded":"2025-02-11","dueDate":"2025-03-04","forensicTriage":"No","knownRansomwareCampaignUse":"Unknown","notes":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21391 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21391","product":"Windows","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","shortDescription":"Microsoft Windows Storage contains a link following vulnerability that could allow for privilege escalation. This vulnerability could allow an attacker to delete data including data that results in the service being unavailable.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft Windows Storage Link Following Vulnerability"},"kev_checked":1794522003,"products":"Microsoft Windows 10 Version 1507, Microsoft Windows 10 Version 1607, Microsoft Windows 10 Version 1809, Microsoft Windows 10 Version 21H2, Microsoft Windows 10 Version 22H2, Microsoft Windows 11 version 22H2, Microsoft Windows 11 version 22H3, Microsoft Windows 11 Version 23H2, Microsoft Windows 11 Version 24H2, Microsoft Windows Server 2016, Microsoft Windows Server 2016 (Server Core installation), Microsoft Windows Server 2019, Microsoft Windows Server 2019 (Server Core installation), Microsoft Windows Server 2022, Microsoft Windows Server 2022, 23H2 Edition (Server Core installation), Microsoft Windows Server 2025, Microsoft Windows Server 2025 (Server Core installation)","references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21391","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21391"],"score":{"baseScore":7.1,"baseSeverity":"HIGH","provider":"microsoft","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:F/RL:O/RC:C","version":"3.1"},"solutions":"","state":"PUBLISHED","title":"Windows Storage Elevation of Privilege Vulnerability","updated_at":1794500401,"workarounds":""},"sources":[]}