{"id":"CVE-2019-1132","kind":"vulnerability","aliases":["CVE-2019-1132"],"related":[],"title":"Microsoft Win32k: Microsoft Win32k Privilege Escalation Vulnerability","description":"A privilege escalation vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory.\n\nCISA required action: Apply updates per vendor instructions.","summary":"Microsoft Windows Win32k kernel component mishandles objects in memory, allowing privilege escalation. A local user who already has code running on the machine can gain higher privileges, such as SYSTEM.","severity":"high","cvss":7.8,"epss":0.09867,"exploited":true,"exploited_at":"2022-03-15T00:00:00+00:00","products":[{"name":"Microsoft Win32k","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","win32k","windows"],"not_affected_if":["patched-windows"],"how_to_check":null,"fix":"Apply the Microsoft security update for CVE-2019-1132 per vendor instructions, as CISA's required action states. Exact patched build numbers are unknown from the sources.","status":"open","published_at":"2019-07-15T19:15:21+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:22:15+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"infrastructure","confidence":0.7,"triage":{"at":"2026-10-23T21:22:15Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft security update for CVE-2019-1132 per vendor instructions, as CISA's required action states. Exact patched build numbers are unknown from the sources.","reach":"local","impact":"high","summary":"Microsoft Windows Win32k kernel component mishandles objects in memory, allowing privilege escalation. A local user who already has code running on the machine can gain higher privileges, such as SYSTEM.","category":"infrastructure","who_cares":["windows","win32k"],"confidence":0.7,"needs_auth":"yes","worst_case":"Attacker with local code execution gains SYSTEM privileges on the Windows machine.","analyst_note":"Confirm affected Windows builds and patch KB numbers from the Microsoft advisory for CVE-2019-1132, since the sources give no version data.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["patched-windows"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000459,"input_tokens":2819,"output_tokens":355,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-1132':10A,13A '-2019':9A,12A 'action':70C 'allow':29B 'alreadi':36B 'appli':71C 'cisa':68C 'code':38B 'compon':24B,60C 'cve':8A,11A 'escal':6A,31B,52C 'exist':54C 'exploit':16B 'fail':61C 'gain':44B 'handl':64C 'higher':45B 'infrastructur':17B 'instruct':75C 'kernel':23B 'local':33B 'machin':42B 'memori':28B,67C 'microsoft':1A,3A,14A,20B 'mishandl':25B 'object':26B,65C 'per':73C 'privileg':5A,30B,46B,51C 'proper':63C 'requir':69C 'run':39B 'system':49B 'updat':72C 'user':34B 'vendor':74C 'vulner':7A,53C 'win32k':2A,4A,15A,18B,22B,59C 'window':19B,21B,56C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2019-07-15T19:15:21+00:00","kev":{"dateAdded":"2022-03-15","dueDate":"2022-04-05","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-2019-1132","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-1132","severity":null,"published_at":"2022-03-15T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T11:39:17+00:00","note":null},{"source":"epss","external_id":"CVE-2019-1132","url":"https://api.first.org/data/v1/epss?cve=CVE-2019-1132","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-2019-1132","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-1132","severity":null,"published_at":"2019-07-15T19:15:21+00:00","modified_at":"2026-06-17T02:27:53+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"}