{"id":"CVE-2001-0537","aliases":["EUVD-2001-0529","GHSA-3m99-vrqx-m6h7"],"status":"published","title":"HTTP server for Cisco IOS 11.3 to 12.2 allows attackers to bypass authentication and execute...","description":"HTTP server for Cisco IOS 11.3 to 12.2 allows attackers to bypass authentication and execute arbitrary commands, when local authorization is being used, by specifying a high access level in the URL.","severity":{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.6845,"percentile":0.99339,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-287"],"published":"2001-07-21T04:00:00Z","modified":"2026-06-16T21:54:29Z","exploits":[{"source":"exploitdb","id":"EDB-20975","title":"Cisco IOS 11.x/12.x - HTTP Configuration Arbitrary Administrative Access (1)","type":"remote","platform":"hardware","date":"2001-06-27","verified":true,"url":"https://www.exploit-db.com/exploits/20975"},{"source":"exploitdb","id":"EDB-20976","title":"Cisco IOS 11.x/12.x - HTTP Configuration Arbitrary Administrative Access (2)","type":"remote","platform":"hardware","date":"2001-06-27","verified":true,"url":"https://www.exploit-db.com/exploits/20976"},{"source":"exploitdb","id":"EDB-20977","title":"Cisco IOS 11.x/12.x - HTTP Configuration Arbitrary Administrative Access (3)","type":"remote","platform":"hardware","date":"2001-03-07","verified":true,"url":"https://www.exploit-db.com/exploits/20977"},{"source":"exploitdb","id":"EDB-20978","title":"Cisco IOS 11.x/12.x - HTTP Configuration Arbitrary Administrative Access (4)","type":"remote","platform":"hardware","date":"2001-06-27","verified":true,"url":"https://www.exploit-db.com/exploits/20978"},{"source":"metasploit","id":"auxiliary/scanner/http/cisco_ios_auth_bypass","title":"Cisco IOS HTTP Unauthorized Administrative Access","type":"auxiliary","date":"2001-06-27","verified":true,"url":"https://www.rapid7.com/db/modules/auxiliary/scanner/http/cisco_ios_auth_bypass"},{"source":"nuclei","id":"CVE-2001-0537","title":"Cisco IOS HTTP Configuration - Authentication Bypass","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2001/CVE-2001-0537.yaml"}],"products":[{"vendor":"cisco","product":"ios"}],"references":[{"url":"http://www.cert.org/advisories/CA-2001-14.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","Exploit","Patch","Third Party Advisory","US Government Resource"]},{"url":"http://www.securityfocus.com/archive/1/4.3.2.7.2.20010629095801.0c3e6a70%40brussels.cisco.com","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.cisco.com/warp/public/707/IOS-httplevel-pub.html","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/archive/1/20010703011650.60515.qmail%40web14910.mail.yahoo.com","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/1601227034.20010702112207%40olympos.org","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.osvdb.org/578","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/Pine.LNX.3.96.1010702134611.22995B-100000%40Lib-Vai.lib.asu.edu","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.ciac.org/ciac/bulletins/l-106.shtml","tags":["third-party-advisory","government-resource","x_refsource_CIAC","x_transferred"]},{"url":"http://www.securityfocus.com/bid/2936","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/6749","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-0537"},{"url":"http://www.securityfocus.com/archive/1/1601227034.20010702112207@olympos.org"},{"url":"http://www.securityfocus.com/archive/1/20010703011650.60515.qmail@web14910.mail.yahoo.com"},{"url":"http://www.securityfocus.com/archive/1/4.3.2.7.2.20010629095801.0c3e6a70@brussels.cisco.com"},{"url":"http://www.securityfocus.com/archive/1/Pine.LNX.3.96.1010702134611.22995B-100000@Lib-Vai.lib.asu.edu"},{"url":"https://github.com/advisories/GHSA-3m99-vrqx-m6h7"}],"sources":{"cve":[{"id":"CVE-2001-0537","description":"HTTP server for Cisco IOS 11.3 to 12.2 allows attackers to bypass authentication and execute arbitrary commands, when local authorization is being used, by specifying a high access level in the URL.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-08T04:21:38.68Z","updated_at":"2026-11-02T14:34:43.032065Z"}],"euvd":[{"id":"EUVD-2001-0529","description":"HTTP server for Cisco IOS 11.3 to 12.2 allows attackers to bypass authentication and execute arbitrary commands, when local authorization is being used, by specifying a high access level in the URL.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-08T04:21:38Z","updated_at":"2026-11-03T01:14:51.137272Z"}],"ghsa":[{"id":"GHSA-3m99-vrqx-m6h7","title":"HTTP server for Cisco IOS 11.3 to 12.2 allows attackers to bypass authentication and execute...","description":"HTTP server for Cisco IOS 11.3 to 12.2 allows attackers to bypass authentication and execute arbitrary commands, when local authorization is being used, by specifying a high access level in the URL.","status":"published","published":"2022-04-30T18:16:16Z","modified":"2025-04-03T03:43:11Z","cwes":["CWE-287"],"updated_at":"2026-11-02T15:00:37.520566Z"}],"nvd":[{"id":"CVE-2001-0537","description":"HTTP server for Cisco IOS 11.3 to 12.2 allows attackers to bypass authentication and execute arbitrary commands, when local authorization is being used, by specifying a high access level in the URL.","status":"published","published":"2001-07-21T04:00:00Z","modified":"2026-06-16T21:54:29.157Z","cvss":[{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:00:40.041412Z"}]}}