{"id":"CVE-2022-41125","kind":"vulnerability","aliases":["CVE-2022-41125"],"related":[],"title":"Windows CNG Key Isolation Service Elevation of Privilege Vulnerability","description":"Microsoft Windows Cryptographic Next Generation (CNG) Key Isolation Service contains an unspecified vulnerability that allows an attacker to gain SYSTEM-level privileges.\n\nCISA required action: Apply updates per vendor instructions.","summary":"A flaw in the Windows CNG Key Isolation Service lets a local attacker gain SYSTEM-level privileges. CISA lists it as actively exploited in the wild.","severity":"high","cvss":7.8,"epss":null,"exploited":true,"exploited_at":"2022-11-08T00:00:00+00:00","products":[{"name":"Microsoft Windows","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows 10 1507","fixed":["10.0.10240.19567"],"affected":"< 10.0.10240.19567","ecosystem":"vendor"},{"name":"microsoft windows 10 1607","fixed":["10.0.14393.5501"],"affected":"< 10.0.14393.5501","ecosystem":"vendor"},{"name":"microsoft windows 10 1809","fixed":["10.0.17763.3650"],"affected":"< 10.0.17763.3650","ecosystem":"vendor"},{"name":"microsoft windows 10 20h2","fixed":["10.0.19042.2251"],"affected":"< 10.0.19042.2251","ecosystem":"vendor"},{"name":"microsoft windows 10 21h1","fixed":["10.0.19043.2251"],"affected":"< 10.0.19043.2251","ecosystem":"vendor"},{"name":"microsoft windows 10 21h2","fixed":["10.0.19044.2251"],"affected":"< 10.0.19044.2251","ecosystem":"vendor"},{"name":"microsoft windows 10 22h2","fixed":["10.0.19045.2251"],"affected":"< 10.0.19045.2251","ecosystem":"vendor"},{"name":"microsoft windows 11 21h2","fixed":["10.0.22000.1219"],"affected":"< 10.0.22000.1219","ecosystem":"vendor"},{"name":"microsoft windows 11 22h2","fixed":["10.0.22621.819"],"affected":"< 10.0.22621.819","ecosystem":"vendor"},{"name":"microsoft windows 8.1","fixed":[],"affected":"","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":["10.0.14393.5501"],"affected":"< 10.0.14393.5501","ecosystem":"vendor"},{"name":"microsoft windows server 2019","fixed":["10.0.17763.3650"],"affected":"< 10.0.17763.3650","ecosystem":"vendor"},{"name":"microsoft windows server 2022","fixed":["10.0.20348.1249"],"affected":"< 10.0.20348.1249","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","windows"],"not_affected_if":[],"how_to_check":null,"fix":"Apply the Microsoft Windows updates per vendor instructions; the sources do not name the patched build.","status":"open","published_at":"2022-11-08T00:00:00+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:08:59+00:00","updated_at":"2026-10-23T22:29:04+00:00","category":"infrastructure","confidence":0.8,"triage":{"at":"2026-10-23T21:08:59Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft Windows updates per vendor instructions; the sources do not name the patched build.","reach":"local","impact":"high","summary":"A flaw in the Windows CNG Key Isolation Service lets a local attacker gain SYSTEM-level privileges. CISA lists it as actively exploited in the wild.","category":"infrastructure","who_cares":["windows"],"confidence":0.8,"needs_auth":"yes","worst_case":"Attacker with local low-privilege access gets full SYSTEM control of the machine.","analyst_note":"Find the patched Windows build numbers and the Microsoft advisory for CVE-2022-41125 to fill in how_to_check and fix.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":[],"user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000435,"input_tokens":2815,"output_tokens":307,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2022':11A,14A '-41125':12A,15A '10':20A,24A,28A,32A,36A,40A,44A '11':48A,52A '1507':21A '1607':25A '1809':29A '2012':60A,64A '2016':68A '2019':72A '2022':76A '20h2':33A '21h1':37A '21h2':41A,49A '22h2':45A,53A '8.1':56A 'action':132C 'activ':102B 'allow':121C 'appli':133C 'attack':92B,123C 'cisa':98B,130C 'cng':2A,85B,112C 'contain':116C 'cryptograph':109C 'cve':10A,13A 'elev':6A 'exploit':77B,103B 'flaw':81B 'gain':93B,125C 'generat':111C 'infrastructur':78B 'instruct':137C 'isol':4A,87B,114C 'key':3A,86B,113C 'let':89B 'level':96B,128C 'list':99B 'local':91B 'microsoft':16A,18A,22A,26A,30A,34A,38A,42A,46A,50A,54A,57A,61A,65A,69A,73A,107C 'next':110C 'per':135C 'privileg':8A,97B,129C 'requir':131C 'server':59A,63A,67A,71A,75A 'servic':5A,88B,115C 'system':95B,127C 'system-level':94B,126C 'unspecifi':118C 'updat':134C 'vendor':136C 'vulner':9A,119C 'wild':106B 'window':1A,79B,84B,108C 'windows':17A,19A,23A,27A,31A,35A,39A,43A,47A,51A,55A,58A,62A,66A,70A,74A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2022-11-08T00:00:00+00:00","kev":{"dateAdded":"2022-11-08","dueDate":"2022-12-09","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"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-2022-41125","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-41125","severity":null,"published_at":"2022-11-08T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T20:35:35+00:00","note":null},{"source":"nvd","external_id":"CVE-2022-41125","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-41125","severity":null,"published_at":"2022-11-09T22:15:25+00:00","modified_at":"2026-08-10T16:18:24+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"}