{"id":"CVE-2022-34713","kind":"vulnerability","aliases":["CVE-2022-34713"],"related":[],"title":"Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability","description":"A remote code execution vulnerability exists when Microsoft Windows MSDT is called using the URL protocol from a calling application.\n\nCISA required action: Apply updates per vendor instructions.","summary":"Microsoft Windows Support Diagnostic Tool (MSDT) can be invoked through a URL protocol handler by a calling application, allowing remote code execution. An attacker who gets a user to open a crafted link or document can run code with that user's privileges.","severity":"high","cvss":7.8,"epss":0.67757,"exploited":true,"exploited_at":"2022-08-09T00:00:00+00:00","products":[{"name":"Microsoft Windows","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows 10 1507","fixed":["10.0.10240.19387"],"affected":"< 10.0.10240.19387","ecosystem":"vendor"},{"name":"microsoft windows 10 1607","fixed":["10.0.14393.5291"],"affected":"< 10.0.14393.5291","ecosystem":"vendor"},{"name":"microsoft windows 10 1809","fixed":["10.0.17763.3287"],"affected":"< 10.0.17763.3287","ecosystem":"vendor"},{"name":"microsoft windows 10 20h2","fixed":["10.0.19042.1889"],"affected":"< 10.0.19042.1889","ecosystem":"vendor"},{"name":"microsoft windows 10 21h1","fixed":["10.0.19043.1889"],"affected":"< 10.0.19043.1889","ecosystem":"vendor"},{"name":"microsoft windows 10 21h2","fixed":["10.0.19044.1889"],"affected":"< 10.0.19044.1889","ecosystem":"vendor"},{"name":"microsoft windows 11 21h2","fixed":["10.0.22000.856"],"affected":"< 10.0.22000.856","ecosystem":"vendor"},{"name":"microsoft windows 7","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows 8.1","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows rt 8.1","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows server 2008","fixed":[],"affected":"= r2","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":["10.0.14393.5291"],"affected":"< 10.0.14393.5291","ecosystem":"vendor"},{"name":"microsoft windows server 2019","fixed":["10.0.17763.3287"],"affected":"< 10.0.17763.3287","ecosystem":"vendor"},{"name":"microsoft windows server 2022","fixed":["10.0.20348.887"],"affected":"< 10.0.20348.887","ecosystem":"vendor"},{"name":"microsoft windows server 20h2","fixed":["10.0.19042.1889"],"affected":"< 10.0.19042.1889","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","microsoft-office","windows","windows-desktop"],"not_affected_if":["unknown"],"how_to_check":null,"fix":"Apply the Microsoft security update for CVE-2022-34713 per vendor instructions (CISA KEV required action). Specific patched build numbers: unknown.","status":"open","published_at":"2022-08-09T00:00:00+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:11:02+00:00","updated_at":"2026-10-23T22:29:04+00:00","category":"infrastructure","confidence":0.7,"triage":{"at":"2026-10-23T21:11:02Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft security update for CVE-2022-34713 per vendor instructions (CISA KEV required action). Specific patched build numbers: unknown.","reach":"internet","impact":"high","summary":"Microsoft Windows Support Diagnostic Tool (MSDT) can be invoked through a URL protocol handler by a calling application, allowing remote code execution. An attacker who gets a user to open a crafted link or document can run code with that user's privileges.","category":"infrastructure","who_cares":["windows","microsoft-office","windows-desktop"],"confidence":0.7,"needs_auth":"no","worst_case":"Attacker runs code on the victim Windows machine with the user's privileges.","analyst_note":"Find the vendor advisory for CVE-2022-34713 and the list of patched Windows builds, plus any detection or mitigation guidance (e.g. disabling the ms-msdt URL protocol) from the Microsoft Security Response Center.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000486,"input_tokens":2836,"output_tokens":404,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2022':12A,15A '-34713':13A,16A '10':21A,25A,29A,33A,37A,41A '11':45A '1507':22A '1607':26A '1809':30A '2008':60A '2012':64A,68A '2016':72A '2019':76A '2022':80A '20h2':34A,84A '21h1':38A '21h2':42A,46A '7':49A '8.1':52A,56A 'action':159C 'allow':112B 'appli':160C 'applic':111B,156C 'attack':117B 'call':110B,148C,155C 'cisa':157C 'code':8A,114B,131B,139C 'craft':125B 'cve':11A,14A 'desktop':93B 'diagnost':4A,97B 'document':128B 'execut':9A,115B,140C 'exist':142C 'exploit':85B 'get':119B 'handler':107B 'infrastructur':86B 'instruct':164C 'invok':102B 'link':126B 'microsoft':1A,17A,19A,23A,27A,31A,35A,39A,43A,47A,50A,53A,57A,61A,65A,69A,73A,77A,81A,88B,94B,144C 'microsoft-offic':87B 'msdt':6A,99B,146C 'offic':89B 'open':123B 'per':162C 'privileg':136B 'protocol':106B,152C 'remot':7A,113B,138C 'requir':158C 'rt':55A 'run':130B 'server':59A,63A,67A,71A,75A,79A,83A 'support':3A,96B 'tool':5A,98B 'updat':161C 'url':105B,151C 'use':149C 'user':121B,134B 'vendor':163C 'vulner':10A,141C 'window':2A,90B,92B,95B,145C 'windows':18A,20A,24A,28A,32A,36A,40A,44A,48A,51A,54A,58A,62A,66A,70A,74A,78A,82A 'windows-desktop':91B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2022-08-09T00:00:00+00:00","kev":{"dateAdded":"2022-08-09","dueDate":"2022-08-30","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":"secure@microsoft.com","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2022-34713","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-34713","severity":null,"published_at":"2022-08-09T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T13:39:31+00:00","note":null},{"source":"epss","external_id":"CVE-2022-34713","url":"https://api.first.org/data/v1/epss?cve=CVE-2022-34713","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-2022-34713","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-34713","severity":null,"published_at":"2022-08-09T20:15:11+00:00","modified_at":"2026-06-17T04:50:46+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"}