{"cve":"CVE-2008-1255","nvd":{"published":"2008-03-10T17:44:00.000","modified":"2026-06-16T22:51:21.997","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"references":["http://www.gnucitizen.org/projects/router-hacking-challenge/","http://www.securityfocus.com/archive/1/489009/100/0/threaded","https://exchange.xforce.ibmcloud.com/vulnerabilities/41114","http://www.gnucitizen.org/projects/router-hacking-challenge/","http://www.securityfocus.com/archive/1/489009/100/0/threaded"],"products":["zyxel:p-660hw"],"source":"nvd","synced_at":"2026-10-19T19:49:50.107194424+00:00"},"epss":{"cve":"CVE-2008-1255","score":0.03911,"percentile":0.90295,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}