{"schemaVersion":3,"id":"CVE-2001-1243","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Scripting.FileSystemObject in asp.dll for Microsoft IIS 4.0 and 5.0 allows local or remote attackers to cause a denial of service (crash) via (1) creating an ASP program that uses Scripting.FileSystemObject to open a file with an MS-DOS device name, or (2) remotely injecting the device name into ASP programs that internally use Scripting.FileSystemObject.","dates":{"published":"2002-05-03T04:00:00.000Z","modified":"2024-08-08T04:51:07.116Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5,"severity":"medium","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","computed":false,"selection":"backend-summary"},"metrics":[{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.70505,"percentile":0.99387,"severity":"critical","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.70505},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.70505,"percentile":0.99387}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.70505,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.70505,"percentile":0.99387}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_31B2E1CA1B2D4D02","name":"Exploit Reference (securityfocus.com)","source":"reference","url":"http://www.securityfocus.com/bid/2973","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null},{"id":"20989","name":"Microsoft IIS 4.0/5.0 - Device File Local Denial of Service","source":"exploit-database","url":"https://www.exploit-db.com/exploits/20989","maturity":"poc","reliabilityScore":0.8,"verified":true,"type":"dos","platforms":["windows"],"requiresAuth":null,"exploitdb":{"verified":true,"type":"dos","platform":"windows","file":"exploits/windows/dos/20989.txt","codes":["CVE-2001-1243","OSVDB-14229"]},"metasploit":null},{"id":"20991","name":"Microsoft IIS 4.0/5.0 - Device File Remote Denial of Service","source":"exploit-database","url":"https://www.exploit-db.com/exploits/20991","maturity":"poc","reliabilityScore":0.8,"verified":true,"type":"dos","platforms":["windows"],"requiresAuth":null,"exploitdb":{"verified":true,"type":"dos","platform":"windows","file":"exploits/windows/dos/20991.txt","codes":["CVE-2001-1243","OSVDB-14229"]},"metasploit":null}],"exploitCount":3,"weaknesses":[],"affected":[{"vendor":"microsoft","product":"internet_information_server","name":"internet information server","label":"internet_information_server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"4.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"4.0","eol":null,"hubHref":"/vendor/microsoft/internet_information_server"},{"vendor":"microsoft","product":"internet_information_services","name":"internet information services","label":"internet_information_services","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"5.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"5.0","eol":null,"hubHref":"/vendor/microsoft/internet_information_services"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://www.iss.net/security_center/static/6800.php","label":"www.iss.net/security_center/static/6800.php","hostname":"www.iss.net","tags":["VDB Entry","X Refsource XF","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/2973","label":"www.securityfocus.com/bid/2973","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Exploit","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/archive/1/194919","label":"www.securityfocus.com/archive/1/194919","hostname":"www.securityfocus.com","tags":["Mailing List","X Refsource BUGTRAQ"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2002-05-03T04:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-08T04:51:07.116Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":44,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T09:08:41.663Z","stale":false,"partial":false}}