{"cve":"CVE-1999-1203","nvd":{"published":"1999-02-12T05:00:00.000","modified":"2026-06-16T21:49:56.330","status":"Modified","description":"Multilink PPP for ISDN dialup users in Ascend before 4.6 allows remote attackers to cause a denial of service via a spoofed endpoint identifier.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://marc.info/?l=bugtraq&m=91868964203769&w=2","http://marc.info/?l=bugtraq&m=91888117502765&w=2","http://www.iss.net/security_center/static/7498.php","http://marc.info/?l=bugtraq&m=91868964203769&w=2","http://marc.info/?l=bugtraq&m=91888117502765&w=2"],"products":["ascend:multilink_ppp_for_isdn"],"source":"nvd","synced_at":"2026-10-19T19:33:01.030757803+00:00"},"epss":{"cve":"CVE-1999-1203","score":0.01614,"percentile":0.75994,"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."]}