{"id":"CVE-2009-2863","aliases":["EUVD-2009-2853","GHSA-r2mm-qr53-2j54"],"status":"published","title":"Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows...","description":"Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows remote attackers to bypass authentication, or bypass the consent web page, via a crafted request, aka Bug ID CSCsy15227.","severity":{"version":"2.0","score":7.1,"vector":"AV:N/AC:M/Au:N/C:C/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0247,"percentile":0.84625,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2009-09-28T18:20:00Z","modified":"2026-06-16T23:10:23Z","products":[{"vendor":"cisco","product":"ios"}],"references":[{"url":"http://www.securityfocus.com/bid/36491","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.securitytracker.com/id?1022935","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/53453","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://tools.cisco.com/security/center/viewAlert.x?alertId=18882","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://osvdb.org/58340","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8132.shtml","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-2863"},{"url":"https://github.com/advisories/GHSA-r2mm-qr53-2j54"}],"sources":{"cve":[{"id":"CVE-2009-2863","description":"Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows remote attackers to bypass authentication, or bypass the consent web page, via a crafted request, aka Bug ID CSCsy15227.","status":"published","published":"2009-09-28T18:20:00Z","modified":"2024-08-07T06:07:37.141Z","updated_at":"2026-11-02T14:33:23.395558Z"}],"euvd":[{"id":"EUVD-2009-2853","description":"Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows remote attackers to bypass authentication, or bypass the consent web page, via a crafted request, aka Bug ID CSCsy15227.","status":"published","published":"2009-09-28T18:20:00Z","modified":"2024-08-07T06:07:37Z","updated_at":"2026-11-03T01:39:15.952935Z"}],"ghsa":[{"id":"GHSA-r2mm-qr53-2j54","title":"Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows...","description":"Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows remote attackers to bypass authentication, or bypass the consent web page, via a crafted request, aka Bug ID CSCsy15227.","status":"published","published":"2022-05-02T03:39:27Z","modified":"2023-01-31T05:08:54Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:49:28.053794Z"}],"nvd":[{"id":"CVE-2009-2863","description":"Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows remote attackers to bypass authentication, or bypass the consent web page, via a crafted request, aka Bug ID CSCsy15227.","status":"published","published":"2009-09-28T19:30:01.313Z","modified":"2026-06-16T23:10:23.047Z","cvss":[{"version":"2.0","score":7.1,"vector":"AV:N/AC:M/Au:N/C:C/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:01:37.004244Z"}]}}