{"id":"CVE-2019-0880","kind":"vulnerability","aliases":["CVE-2019-0880"],"related":[],"title":"Microsoft Windows: Microsoft Windows Privilege Escalation Vulnerability","description":"A local elevation of privilege vulnerability exists in how splwow64.exe handles certain calls. An attacker who successfully exploited the vulnerability could elevate privileges on an affected system from low-integrity to medium-integrity.\n\nCISA required action: Apply updates per vendor instructions.","summary":"A local elevation of privilege flaw in Windows splwow64.exe, the print-driver helper, lets a low-integrity process raise itself to medium integrity. CISA lists it as actively exploited, so attackers are using it after they already have code running on the machine.","severity":"high","cvss":7.8,"epss":0.02308,"exploited":true,"exploited_at":"2022-05-23T00:00:00+00:00","products":[{"name":"Microsoft Windows","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","microsoft-windows","self-hosted","windows"],"not_affected_if":["patched-windows"],"how_to_check":null,"fix":"Apply the Microsoft Windows security update for CVE-2019-0880 per vendor instructions, as CISA requires.","status":"open","published_at":"2019-07-15T19:15:15+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:16:00+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:16:00Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft Windows security update for CVE-2019-0880 per vendor instructions, as CISA requires.\nunknown","reach":"local","impact":"medium","summary":"A local elevation of privilege flaw in Windows splwow64.exe, the print-driver helper, lets a low-integrity process raise itself to medium integrity. CISA lists it as actively exploited, so attackers are using it after they already have code running on the machine.","category":"infrastructure","who_cares":["windows","microsoft-windows","self-hosted"],"confidence":0.6,"needs_auth":"yes","worst_case":"Local attacker escalates from low to medium integrity on the machine.","analyst_note":"Find the Microsoft advisory for CVE-2019-0880 to confirm affected Windows builds and the exact patch KB, and check the KEV entry for exploitation details.","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":0.00047,"input_tokens":2853,"output_tokens":370,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-0880':10A,13A '-2019':9A,12A 'action':107C 'activ':54B 'affect':95C 'alreadi':63B 'appli':108C 'attack':57B,84C 'call':82C 'certain':81C 'cisa':50B,105C 'code':65B 'could':90C 'cve':8A,11A 'driver':37B 'elev':27B,72C,91C 'escal':6A 'exist':76C 'exploit':16B,55B,87C 'flaw':30B 'handl':80C 'helper':38B 'host':23B 'infrastructur':17B 'instruct':112C 'integr':43B,49B,100C,104C 'let':39B 'list':51B 'local':26B,71C 'low':42B,99C 'low-integr':41B,98C 'machin':69B 'medium':48B,103C 'medium-integr':102C 'microsoft':1A,3A,14A,19B 'microsoft-window':18B 'per':110C 'print':36B 'print-driv':35B 'privileg':5A,29B,74C,92C 'process':44B 'rais':45B 'requir':106C 'run':66B 'self':22B 'self-host':21B 'splwow64.exe':33B,79C 'success':86C 'system':96C 'updat':109C 'use':59B 'vendor':111C 'vulner':7A,75C,89C 'window':2A,4A,20B,24B,32B 'windows':15A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2019-07-15T19:15:15+00:00","kev":{"dateAdded":"2022-05-23","dueDate":"2022-06-13","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-2019-0880","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-0880","severity":null,"published_at":"2022-05-23T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T10:39:06+00:00","note":null},{"source":"epss","external_id":"CVE-2019-0880","url":"https://api.first.org/data/v1/epss?cve=CVE-2019-0880","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-2019-0880","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-0880","severity":null,"published_at":"2019-07-15T19:15:15+00:00","modified_at":"2026-06-17T02:09:06+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"}