{"id":"CVE-2013-5065","kind":"vulnerability","aliases":["CVE-2013-5065"],"related":[],"title":"Microsoft Windows: Microsoft Windows Kernel Privilege Escalation Vulnerability","description":"Microsoft Windows NDProxy.sys in the kernel contains an improper input validation vulnerability which can allow a local attacker to escalate privileges.\n\nCISA required action: Apply updates per vendor instructions.","summary":"Microsoft Windows NDProxy.sys, a kernel component, has an input validation flaw. A local attacker who can run code on the machine can use it to gain higher privileges, up to SYSTEM.","severity":"high","cvss":7.8,"epss":0.34651,"exploited":true,"exploited_at":"2022-03-03T00:00:00+00:00","products":[{"name":"Microsoft Windows","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","self-hosted","windows"],"not_affected_if":["non-windows","patched-windows"],"how_to_check":null,"fix":"Apply the Microsoft update for CVE-2013-5065 per vendor instructions, as CISA requires; the specific KB or patched build is not in the sources.","status":"open","published_at":"2013-11-28T00:55:04+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:26:03+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:26:03Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft update for CVE-2013-5065 per vendor instructions, as CISA requires; the specific KB or patched build is not in the sources.","reach":"local","impact":"high","summary":"Microsoft Windows NDProxy.sys, a kernel component, has an input validation flaw. A local attacker who can run code on the machine can use it to gain higher privileges, up to SYSTEM.","category":"infrastructure","who_cares":["windows","self-hosted"],"confidence":0.6,"needs_auth":"yes","worst_case":"local user gains kernel-level privileges on the Windows machine","analyst_note":"Confirm affected Windows versions and the patch KB from Microsoft's security bulletin (MS13-076 per public references) and the CISA KEV entry.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["patched-windows","non-windows"],"user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000457,"input_tokens":2833,"output_tokens":348,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2013':10A,13A '-5065':11A,14A 'action':77C 'allow':68C 'appli':78C 'attack':36B,71C 'cisa':75C 'code':40B 'compon':28B 'contain':60C 'cve':9A,12A 'escal':7A,73C 'exploit':17B 'flaw':33B 'gain':48B 'higher':49B 'host':21B 'improp':62C 'infrastructur':18B 'input':31B,63C 'instruct':82C 'kernel':5A,27B,59C 'local':35B,70C 'machin':43B 'microsoft':1A,3A,15A,23B,54C 'ndproxy.sys':25B,56C 'per':80C 'privileg':6A,50B,74C 'requir':76C 'run':39B 'self':20B 'self-host':19B 'system':53B 'updat':79C 'use':45B 'valid':32B,64C 'vendor':81C 'vulner':8A,65C 'window':2A,4A,22B,24B,55C 'windows':16A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2013-11-28T00:55:04+00:00","kev":{"dateAdded":"2022-03-03","dueDate":"2022-03-24","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2013-5065","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2013-5065","severity":null,"published_at":"2022-03-03T00:00:00+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-2013-5065","url":"https://api.first.org/data/v1/epss?cve=CVE-2013-5065","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-2013-5065","url":"https://nvd.nist.gov/vuln/detail/CVE-2013-5065","severity":null,"published_at":"2013-11-28T00:55:04+00:00","modified_at":"2026-06-16T23:58:19+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"}