{"id":"CVE-2008-4250","kind":"vulnerability","aliases":["CVE-2008-4250"],"related":[],"title":"The Server service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1,…","description":"Microsoft Windows contains a buffer overflow vulnerability in the Windows Server Service that allows remote attackers to execute arbitrary code via a crafted RPC request that triggers an overflow during path canonicalization.\n\nCISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","summary":"A buffer overflow in the Windows Server Service lets a remote attacker run arbitrary code by sending a crafted RPC request that overflows during path canonicalization. CISA lists it as actively exploited in the wild.","severity":"critical","cvss":10.0,"epss":null,"exploited":true,"exploited_at":"2026-05-20T00:00:00+00:00","products":[{"name":"Microsoft Windows","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows 2000","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows server 2003","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows server 2008","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows vista","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows xp","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","rpc","smb","windows","windows-server"],"not_affected_if":["patched-systems"],"how_to_check":null,"fix":"Apply the Microsoft patch for CVE-2008-4250 (MS08-067) or follow the vendor mitigations; if neither is possible, discontinue use of the affected Windows system per CISA guidance.","status":"open","published_at":"2008-10-23T22:00:01+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:34:06+00:00","updated_at":"2026-10-23T23:44:51+00:00","category":"infrastructure","confidence":0.8,"triage":{"at":"2026-10-23T20:34:06Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft patch for CVE-2008-4250 (MS08-067) or follow the vendor mitigations; if neither is possible, discontinue use of the affected Windows system per CISA guidance.","summary":"A buffer overflow in the Windows Server Service lets a remote attacker run arbitrary code by sending a crafted RPC request that overflows during path canonicalization. CISA lists it as actively exploited in the wild.","category":"infrastructure","who_cares":["windows","windows-server","smb","rpc"],"confidence":0.8,"analyst_note":"Confirm the exact affected Windows versions and the MS08-067 bulletin reference from Microsoft's advisory, and verify the detection method for an unpatched host.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["patched-systems"],"severity_if_unknown":"critical"},"cost_usd":0.000362,"input_tokens":2082,"output_tokens":307,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-01':134C '-2008':23A,26A '-4250':24A,27A '2000':7A,32A '2003':14A,36A '2008':40A '22':133C 'action':124C 'activ':85B 'allow':103C 'appli':125C 'applic':131C 'arbitrari':68B,108C 'attack':66B,105C 'bod':132C 'buffer':56B,94C 'canonic':80B,121C 'cisa':81B,122C 'cloud':137C 'code':69B,109C 'contain':92C 'craft':73B,112C 'cve':22A,25A 'discontinu':140C 'execut':107C 'exploit':47B,86B 'follow':130C 'gold':19A 'guidanc':135C 'infrastructur':48B 'instruct':129C 'let':63B 'list':82B 'microsoft':5A,28A,30A,33A,37A,41A,44A,90C 'mitig':126C,146C 'overflow':57B,77B,95C,118C 'path':79B,120C 'per':127C 'product':144C 'remot':65B,104C 'request':75B,114C 'requir':123C 'rpc':49B,74B,113C 'run':67B 'send':71B 'server':2A,13A,35A,39A,54B,61B,100C 'servic':3A,62B,101C,138C 'smb':50B 'sp1':15A,21A 'sp2':10A,17A 'sp3':12A 'sp4':8A 'trigger':116C 'unavail':148C 'use':141C 'vendor':128C 'via':110C 'vista':18A,43A 'vulner':96C 'wild':89B 'window':6A,51B,53B,60B,91C,99C 'windows':29A,31A,34A,38A,42A,45A 'windows-serv':52B 'xp':9A,46A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2008-10-23T22:00:01+00:00","kev":{"dateAdded":"2026-05-20","dueDate":"2026-06-03","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2008-4250","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2008-4250","severity":null,"published_at":"2026-05-20T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T19:35:19+00:00","note":null},{"source":"nvd","external_id":"CVE-2008-4250","url":"https://nvd.nist.gov/vuln/detail/CVE-2008-4250","severity":null,"published_at":"2008-10-23T22:00:01+00:00","modified_at":"2026-06-16T22:57:29+00:00","first_seen_at":"2026-10-23T23:44:51+00:00","fetched_at":"2026-10-23T23:44:51+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"}