{"id":"CVE-2008-1255","aliases":["EUVD-2008-1263","GHSA-65mm-vp95-x59v"],"status":"published","title":"The ZyXEL P-660HW series router maintains authentication state by IP address, which allows remote...","description":"The ZyXEL P-660HW series router maintains authentication state by IP address, which allows remote attackers to bypass authentication by establishing a session from a source IP address of a previously authenticated user.","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03911,"percentile":0.90367,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2008-03-10T17:00:00Z","modified":"2026-06-16T22:51:21Z","products":[{"vendor":"zyxel","product":"p-660hw"}],"references":[{"url":"http://www.securityfocus.com/archive/1/489009/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/41114","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.gnucitizen.org/projects/router-hacking-challenge/","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2008-1255"},{"url":"http://www.gnucitizen.org/projects/router-hacking-challenge"},{"url":"https://github.com/advisories/GHSA-65mm-vp95-x59v"}],"sources":{"cve":[{"id":"CVE-2008-1255","description":"The ZyXEL P-660HW series router maintains authentication state by IP address, which allows remote attackers to bypass authentication by establishing a session from a source IP address of a previously authenticated user.","status":"published","published":"2008-03-10T17:00:00Z","modified":"2024-08-07T08:17:33.747Z","updated_at":"2026-11-02T14:34:47.310062Z"}],"euvd":[{"id":"EUVD-2008-1263","description":"The ZyXEL P-660HW series router maintains authentication state by IP address, which allows remote attackers to bypass authentication by establishing a session from a source IP address of a previously authenticated user.","status":"published","published":"2008-03-10T17:00:00Z","modified":"2024-08-07T08:17:33Z","updated_at":"2026-11-03T01:39:02.668683Z"}],"ghsa":[{"id":"GHSA-65mm-vp95-x59v","title":"The ZyXEL P-660HW series router maintains authentication state by IP address, which allows remote...","description":"The ZyXEL P-660HW series router maintains authentication state by IP address, which allows remote attackers to bypass authentication by establishing a session from a source IP address of a previously authenticated user.","status":"published","published":"2022-05-01T23:38:14Z","modified":"2025-04-09T03:53:24Z","updated_at":"2026-11-02T15:00:57.05109Z"}],"nvd":[{"id":"CVE-2008-1255","description":"The ZyXEL P-660HW series router maintains authentication state by IP address, which allows remote attackers to bypass authentication by establishing a session from a source IP address of a previously authenticated user.","status":"published","published":"2008-03-10T17:44:00Z","modified":"2026-06-16T22:51:21.997Z","cvss":[{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:01:25.307768Z"}]}}