{"id":"CVE-2020-0986","kind":"vulnerability","aliases":["CVE-2020-0986"],"related":[],"title":"Microsoft Windows: Microsoft Windows Kernel Privilege Escalation Vulnerability","description":"An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory, aka 'Windows Kernel Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1237, CVE-2020-1246, CVE-2020-1262, CVE-2020-1264, CVE-2020-1266, CVE-2020-1269, CVE-2020-1273, CVE-2020-1274, CVE-2020-1275, CVE-2020-1276, CVE-2020-1307, CVE-2020-1316.","summary":"A flaw in the Windows kernel's handling of objects in memory lets an attacker escalate privileges and run code in kernel mode. CISA lists it as actively exploited in the wild.","severity":"high","cvss":7.8,"epss":0.16405,"exploited":true,"exploited_at":"2021-11-03T00:00:00+00:00","products":[{"name":"Microsoft Windows","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","windows"],"not_affected_if":["unknown"],"how_to_check":null,"fix":"Apply the Microsoft update for CVE-2020-0986 per vendor instructions, as CISA requires.","status":"open","published_at":"2020-06-09T20:15:12+00:00","first_seen_at":"2026-10-23T19:11:53+00:00","triaged_at":"2026-10-23T21:37:36+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:37:36Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft update for CVE-2020-0986 per vendor instructions, as CISA requires.","reach":"local","impact":"high","summary":"A flaw in the Windows kernel's handling of objects in memory lets an attacker escalate privileges and run code in kernel mode. CISA lists it as actively exploited in the wild.","category":"infrastructure","who_cares":["windows"],"confidence":0.6,"needs_auth":"yes","worst_case":"Attacker with local foothold gains kernel-mode code execution and full system control","analyst_note":"Confirm the affected Windows builds and the patch KB number from the Microsoft advisory for CVE-2020-0986; sources give no version details.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000441,"input_tokens":2837,"output_tokens":314,"severity_before":"unknown"},"analyst_status":"queued","analyst_note":"Confirm the affected Windows builds and the patch KB number from the Microsoft advisory for CVE-2020-0986; sources give no version details.","search":"'-0986':11A,14A '-1237':84C '-1246':87C '-1262':90C '-1264':93C '-1266':96C '-1269':99C '-1273':102C '-1274':105C '-1275':108C '-1276':111C '-1307':114C '-1316':117C '-2020':10A,13A,83C,86C,89C,92C,95C,98C,101C,104C,107C,110C,113C,116C 'activ':47B 'aka':69C 'attack':34B 'cisa':43B 'code':39B 'cve':9A,12A,77C,82C,85C,88C,91C,94C,97C,100C,103C,106C,109C,112C,115C 'elev':53C,72C 'escal':7A,35B 'exist':57C 'exploit':17B,48B 'fail':62C 'flaw':21B 'handl':27B,65C 'id':78C 'infrastructur':18B 'kernel':5A,25B,41B,61C,71C 'let':32B 'list':44B 'memori':31B,68C 'microsoft':1A,3A,15A 'mode':42B 'object':29B,66C 'privileg':6A,36B,55C,74C 'proper':64C 'run':38B 'uniqu':80C 'vulner':8A,56C,75C 'wild':51B 'window':2A,4A,19B,24B,60C,70C 'windows':16A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2020-06-09T20:15:12+00:00","kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","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":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2020-0986","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-0986","severity":null,"published_at":"2021-11-03T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:53+00:00","fetched_at":"2026-10-25T16:39:50+00:00","note":null},{"source":"epss","external_id":"CVE-2020-0986","url":"https://api.first.org/data/v1/epss?cve=CVE-2020-0986","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:44+00:00","fetched_at":"2026-10-23T19:13:44+00:00","note":null},{"source":"nvd","external_id":"CVE-2020-0986","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-0986","severity":null,"published_at":"2020-06-09T20:15:12+00:00","modified_at":"2026-06-17T02:47:08+00:00","first_seen_at":"2026-10-23T21:57:35+00:00","fetched_at":"2026-10-23T21:57:35+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"}