{"id":"CVE-2020-17103","published":"2020-12-09T23:36:42Z","modified":"2026-06-10T03:57:34Z","title":"Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability","vendor":"Microsoft","product":"Windows 10 Version 1809","tier":"core","eol":null,"affectedVersions":[{"vendor":"Microsoft","product":"Windows 10 Version 1809","versions":[">= 10.0.17763.0, < 10.0.17763.8880"]},{"vendor":"Microsoft","product":"Windows 11 version 23H2","versions":[">= 10.0.22631.0, < 10.0.22631.7219"]},{"vendor":"Microsoft","product":"Windows 11 Version 23H2","versions":[">= 10.0.22631.0, < 10.0.22631.7219"]},{"vendor":"Microsoft","product":"Windows 11 Version 24H2","versions":[">= 10.0.26100.0, < 10.0.26100.8655"]},{"vendor":"Microsoft","product":"Windows 11 Version 25H2","versions":[">= 10.0.26200.0, < 10.0.26200.8655"]},{"vendor":"Microsoft","product":"Windows 11 version 26H1","versions":[">= 10.0.28000.0, < 10.0.28000.2269"]},{"vendor":"Microsoft","product":"Windows Server 2019","versions":[">= 10.0.17763.0, < 10.0.17763.8880"]},{"vendor":"Microsoft","product":"Windows Server 2019 (Server Core installation)","versions":[">= 10.0.17763.0, < 10.0.17763.8880"]},{"vendor":"Microsoft","product":"Windows Server 2025","versions":[">= 10.0.26100.0, < 10.0.26100.32995"]},{"vendor":"Microsoft","product":"Windows Server 2025 (Server Core installation)","versions":[">= 10.0.26100.0, < 10.0.26100.32995"]}],"description":{"text":"Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability","provenance":"source","from":"CVE.org"},"summary":{"text":"The flaw is an elevation of privilege vulnerability in the Windows Cloud Files Mini Filter Driver, a component of Microsoft's Windows 10 Version 1809, and it stems from improper privilege management. An attacker with local access and low-level privileges, who can run code without user interaction and must overcome a high-complexity attack condition, could exploit it to gain elevated privileges on the affected system.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T13:44:19Z"},"cvss":{"score":7,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.23836,"percentile":0.97822,"date":"2026-10-29","provenance":"source"},"kev":null,"vulncheckKev":{"dateAdded":"2026-05-19","exploitedFirstSeen":"2026-05-19","ransomware":false,"evidence":[{"url":"https://www.threatlocker.com/blog/miniplasma-windows-privilege-escalation-zero-day-affects-fully-patched-systems","date":"2026-05-19"},{"url":"https://www.recordedfuture.com/blog/june-2026-cve-landscape","date":"2026-07-10"}],"evidenceTotal":2,"provenance":"source"},"exploited":true,"otx":{"pulseCount":3,"pulses":[{"name":"A Record-Breaking Patch Tuesday for June 2026 [Krebs on Security]","url":"https://otx.alienvault.com/pulse/6a6d530f4ea98b5020625ece","created":"2026-08-01"},{"name":"June Patch Tuesday smashes past 500-CVE mark [Threat Research – Sophos News]","url":"https://otx.alienvault.com/pulse/6a6c8ee19317bd3ac6a523ad","created":"2026-07-31"},{"name":"Thor Lite Scan - 10.7.15 - Ubuntu Scan on Archived Files","url":"https://otx.alienvault.com/pulse/664cc3c1938ed0b9abf026a2","created":"2024-05-21"}],"provenance":"machine"},"cwes":[{"id":"CWE-269","name":"Improper Privilege Management"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17103","tags":["vendor-advisory","patch"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17103","tags":["x_refsource_MISC","x_transferred"]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2020-9058","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-9058","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":7,"skipped":0,"earliest":"2026-05-17","earliestUrl":"https://github.com/CaptainChicky/MiniPlasma","repos":[{"name":"AlexLinov/MiniPlasma-Runner","url":"https://github.com/AlexLinov/MiniPlasma-Runner","stars":46,"created":"2026-05-18"},{"name":"CaptainChicky/MiniPlasma","url":"https://github.com/CaptainChicky/MiniPlasma","stars":2,"created":"2026-05-17"},{"name":"mohammadzarnian1357/MiniPlasma","url":"https://github.com/mohammadzarnian1357/MiniPlasma","stars":2,"created":"2026-05-23"},{"name":"arch1m3d/MiniPlasma-Detection","url":"https://github.com/arch1m3d/MiniPlasma-Detection","stars":1,"created":"2026-05-18"},{"name":"dooodad/MiniPlasma","url":"https://github.com/dooodad/MiniPlasma","stars":0,"created":"2026-05-21"}]},"first":{"date":"2026-05-17","source":"PoC-in-GitHub","url":"https://github.com/CaptainChicky/MiniPlasma"},"provenance":"source"},"exploitRefs":[],"flow":[],"timeline":[{"date":"2020-12-09","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2020-17103","provenance":"source"},{"date":"2026-05-17","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/CaptainChicky/MiniPlasma","provenance":"source"},{"date":"2026-05-19","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.threatlocker.com/blog/miniplasma-windows-privilege-escalation-zero-day-affects-fully-patched-systems","provenance":"source"}],"speed":{"daysToPublicExploit":1985,"firstExploitFrom":"PoC-in-GitHub","daysToKev":null},"priority":{"score":70.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in VulnCheck KEV"},{"name":"Recent KEV listing","points":5.0,"detail":"added 163 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.56,"detail":"percentile 0.9782"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"7 PoC-in-GitHub repos"},{"name":"Mentioned in OTX pulses","points":1.37,"detail":"3 pulses"},{"name":"CVSS severity","points":4.9,"detail":"base score 7"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-microsoft-windows-cwe-269"}}