{"cve":"CVE-2008-6564","nvd":{"published":"2009-03-31T17:30:00.453","modified":"2026-06-16T23:02:27.887","status":"Modified","description":"Nortel UNIStim protocol, as used in Communication Server 1000 and other products, uses predictable sequence numbers, which allows remote attackers to hijack sessions via sniffing or brute force attacks.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://osvdb.org/44379","http://secunia.com/advisories/29747","http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=713455","http://www.securityfocus.com/bid/28691","http://www.securitytracker.com/id?1019847"],"products":["nortel:communication_server_1000","nortel:unistim_protocol"],"source":"nvd","synced_at":"2026-10-19T19:54:07.895733559+00:00"},"epss":{"cve":"CVE-2008-6564","score":0.02244,"percentile":0.82862,"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."]}