{"id":"CVE-2023-29360","kind":"vulnerability","aliases":["CVE-2023-29360"],"related":[],"title":"Microsoft Streaming Service Elevation of Privilege Vulnerability","description":"Microsoft Streaming Service contains an untrusted pointer dereference vulnerability that allows for privilege escalation, enabling a local attacker to gain SYSTEM privileges.\n\nCISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","summary":"Microsoft Streaming Service has an untrusted pointer dereference flaw that lets a local user escalate privileges. An attacker with a local foothold can gain SYSTEM rights on the Windows machine.","severity":"high","cvss":8.4,"epss":null,"exploited":true,"exploited_at":"2024-02-29T00:00:00+00:00","products":[{"name":"Microsoft Streaming Service","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows 10 1607","fixed":["10.0.14393.5989"],"affected":"< 10.0.14393.5989","ecosystem":"vendor"},{"name":"microsoft windows 10 1809","fixed":["10.0.17763.4499"],"affected":"< 10.0.17763.4499","ecosystem":"vendor"},{"name":"microsoft windows 10 21h2","fixed":["10.0.19044.3086"],"affected":"< 10.0.19044.3086","ecosystem":"vendor"},{"name":"microsoft windows 10 22h2","fixed":["10.0.19045.3086"],"affected":"< 10.0.19045.3086","ecosystem":"vendor"},{"name":"microsoft windows 11 21h2","fixed":["10.0.22000.2057"],"affected":"< 10.0.22000.2057","ecosystem":"vendor"},{"name":"microsoft windows 11 22h2","fixed":["10.0.22621.1848"],"affected":"< 10.0.22621.1848","ecosystem":"vendor"},{"name":"microsoft windows server 2016","fixed":["10.0.14393.5989"],"affected":"< 10.0.14393.5989","ecosystem":"vendor"},{"name":"microsoft windows server 2019","fixed":["10.0.17763.4499"],"affected":"< 10.0.17763.4499","ecosystem":"vendor"},{"name":"microsoft windows server 2022","fixed":["10.0.20348.1784"],"affected":"< 10.0.20348.1784","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","microsoft-streaming-service","windows"],"not_affected_if":["unknown"],"how_to_check":null,"fix":"Apply the Microsoft security update for CVE-2023-29360 per vendor instructions, or discontinue use of the affected product if mitigations are unavailable.","status":"open","published_at":"2023-06-14T00:15:10+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T21:02:18+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:02:18Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft security update for CVE-2023-29360 per vendor instructions, or discontinue use of the affected product if mitigations are unavailable.","reach":"local","impact":"high","summary":"Microsoft Streaming Service has an untrusted pointer dereference flaw that lets a local user escalate privileges. An attacker with a local foothold can gain SYSTEM rights on the Windows machine.","category":"infrastructure","who_cares":["windows","microsoft-streaming-service"],"confidence":0.6,"needs_auth":"yes","worst_case":"local user gains SYSTEM privileges on the Windows machine","analyst_note":"Find the Microsoft advisory for CVE-2023-29360 to get affected Windows builds, the patch KB, and a way to check whether the Streaming Service component is present and patched.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000463,"input_tokens":2834,"output_tokens":359,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2023':9A,12A '-29360':10A,13A '10':19A,23A,27A,31A '11':35A,39A '1607':20A '1809':24A '2016':44A '2019':48A '2022':52A '21h2':28A,36A '22h2':32A,40A 'action':114C 'allow':100C 'appli':115C 'attack':77B,107C 'cisa':112C 'contain':93C 'cve':8A,11A 'derefer':67B,97C 'discontinu':121C 'elev':4A 'enabl':104C 'escal':74B,103C 'exploit':53B 'flaw':68B 'foothold':81B 'gain':83B,109C 'infrastructur':54B 'instruct':119C 'let':70B 'local':72B,80B,106C 'machin':89B 'microsoft':1A,14A,17A,21A,25A,29A,33A,37A,41A,45A,49A,56B,60B,90C 'microsoft-streaming-servic':55B 'mitig':116C,127C 'per':117C 'pointer':66B,96C 'privileg':6A,75B,102C,111C 'product':125C 'requir':113C 'right':85B 'server':43A,47A,51A 'servic':3A,58B,62B,92C 'service':16A 'stream':2A,57B,61B,91C 'streaming':15A 'system':84B,110C 'unavail':129C 'untrust':65B,95C 'use':122C 'user':73B 'vendor':118C 'vulner':7A,98C 'window':59B,88B 'windows':18A,22A,26A,30A,34A,38A,42A,46A,50A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2023-06-14T00:15:10+00:00","kev":{"dateAdded":"2024-02-29","dueDate":"2024-03-21","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2023-29360","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-29360","severity":null,"published_at":"2024-02-29T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T14:39:39+00:00","note":null},{"source":"nvd","external_id":"CVE-2023-29360","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-29360","severity":null,"published_at":"2023-06-14T00:15:10+00:00","modified_at":"2026-06-17T05:49:53+00:00","first_seen_at":"2026-10-23T22:29:05+00:00","fetched_at":"2026-10-23T22:29:05+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"}