{"id":"CVE-2022-37969","kind":"vulnerability","aliases":["CVE-2022-37969"],"related":[],"title":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","description":"Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.\n\nCISA required action: Apply updates per vendor instructions.","summary":"A flaw in the Windows Common Log File System (CLFS) driver lets a local user raise their privileges. An attacker who already has a foothold on the machine can gain SYSTEM-level control.","severity":"high","cvss":7.8,"epss":0.28275,"exploited":true,"exploited_at":"2022-09-14T00:00:00+00:00","products":[{"name":"Microsoft Windows","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows 10 1507","fixed":["10.0.10240.19444"],"affected":"< 10.0.10240.19444","ecosystem":"vendor"},{"name":"microsoft windows 10 1607","fixed":["10.0.14393.5356"],"affected":"< 10.0.14393.5356","ecosystem":"vendor"},{"name":"microsoft windows 10 1809","fixed":["10.0.17763.3406"],"affected":"< 10.0.17763.3406","ecosystem":"vendor"},{"name":"microsoft windows 10 20h2","fixed":["10.0.19042.2006"],"affected":"< 10.0.19042.2006","ecosystem":"vendor"},{"name":"microsoft windows 10 21h1","fixed":["10.0.19043.2006"],"affected":"< 10.0.19043.2006","ecosystem":"vendor"},{"name":"microsoft windows 10 21h2","fixed":["10.0.19044.2006"],"affected":"< 10.0.19044.2006","ecosystem":"vendor"},{"name":"microsoft windows 11 21h2","fixed":["10.0.22000.978"],"affected":"< 10.0.22000.978","ecosystem":"vendor"},{"name":"microsoft windows 7","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows 8.1","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows rt 8.1","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows server 2008","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows server 2008","fixed":[],"affected":"= r2","ecosystem":"vendor"},{"name":"microsoft windows server 2012","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows server 2012","fixed":[],"affected":"= r2","ecosystem":"vendor"},{"name":"microsoft windows server 2016","fixed":["10.0.14393.5356"],"affected":"< 10.0.14393.5356","ecosystem":"vendor"},{"name":"microsoft windows server 2019","fixed":["10.0.17763.3406"],"affected":"< 10.0.17763.3406","ecosystem":"vendor"},{"name":"microsoft windows server 2022","fixed":["10.0.20348.1006"],"affected":"< 10.0.20348.1006","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","ransomware","self-hosted","windows"],"not_affected_if":["patched-windows"],"how_to_check":null,"fix":"Apply the Microsoft security update for CVE-2022-37969 per vendor instructions (CISA required action); the specific KB and patched build are not in the sources.","status":"open","published_at":"2022-09-13T19:15:12+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:10:39+00:00","updated_at":"2026-10-23T22:29:04+00:00","category":"infrastructure","confidence":0.8,"triage":{"at":"2026-10-23T21:10:39Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft security update for CVE-2022-37969 per vendor instructions (CISA required action); the specific KB and patched build are not in the sources.","reach":"local","impact":"high","summary":"A flaw in the Windows Common Log File System (CLFS) driver lets a local user raise their privileges. An attacker who already has a foothold on the machine can gain SYSTEM-level control.","category":"infrastructure","who_cares":["windows","self-hosted"],"confidence":0.8,"needs_auth":"yes","worst_case":"Local attacker gains SYSTEM privileges on the Windows machine.","analyst_note":"Find the Microsoft advisory for CVE-2022-37969 and record the patched KB and affected builds; the sources give no version or KB.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["patched-windows"],"user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000454,"input_tokens":2843,"output_tokens":339,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2022':12A,15A '-37969':13A,16A '10':21A,25A,29A,33A,37A,41A '11':45A '1507':22A '1607':26A '1809':30A '2008':60A,64A '2012':68A,72A '2016':76A '2019':80A '2022':84A '20h2':34A '21h1':38A '21h2':42A,46A '7':49A '8.1':52A,56A 'action':145C 'allow':139C 'alreadi':113B 'appli':146C 'attack':111B 'cisa':143C 'clfs':101B,132C 'common':2A,97B,128C 'contain':134C 'control':125B 'cve':11A,14A 'driver':6A,102B,133C 'elev':7A 'escal':142C 'exploit':85B 'file':4A,99B,130C 'flaw':93B 'foothold':116B 'gain':121B 'host':90B 'infrastructur':86B 'instruct':150C 'let':103B 'level':124B 'local':105B 'log':3A,98B,129C 'machin':119B 'microsoft':17A,19A,23A,27A,31A,35A,39A,43A,47A,50A,53A,57A,61A,65A,69A,73A,77A,81A,126C 'per':148C 'privileg':9A,109B,141C 'rais':107B 'ransomwar':87B 'requir':144C 'rt':55A 'self':89B 'self-host':88B 'server':59A,63A,67A,71A,75A,79A,83A 'system':5A,100B,123B,131C 'system-level':122B 'unspecifi':136C 'updat':147C 'user':106B 'vendor':149C 'vulner':10A,137C 'window':1A,91B,96B,127C 'windows':18A,20A,24A,28A,32A,36A,40A,44A,48A,51A,54A,58A,62A,66A,70A,74A,78A,82A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2022-09-13T19:15:12+00:00","kev":{"dateAdded":"2022-09-14","dueDate":"2022-10-05","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Known"},"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2022-37969","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-37969","severity":null,"published_at":"2022-09-14T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T12:39:23+00:00","note":null},{"source":"epss","external_id":"CVE-2022-37969","url":"https://api.first.org/data/v1/epss?cve=CVE-2022-37969","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:45+00:00","fetched_at":"2026-10-23T19:13:45+00:00","note":null},{"source":"nvd","external_id":"CVE-2022-37969","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-37969","severity":null,"published_at":"2022-09-13T19:15:12+00:00","modified_at":"2026-09-10T04:17:35+00:00","first_seen_at":"2026-10-23T22:29:04+00:00","fetched_at":"2026-10-23T22:29:04+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}