{"cve":"CVE-2008-4609","nvd":{"published":"2008-10-20T17:59:26.163","modified":"2026-06-16T22:58:09.650","status":"Modified","description":"The TCP implementation in (1) Linux, (2) platforms based on BSD Unix, (3) Microsoft Windows, (4) Cisco products, and probably other operating systems allows remote attackers to cause a denial of service (connection queue exhaustion) via multiple vectors that manipulate information in the TCP state table, as demonstrated by sockstress.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-16"],"references":["http://blog.robertlee.name/2008/10/conjecture-speculation.html","http://insecure.org/stf/tcp-dos-attack-explained.html","http://lists.immunitysec.com/pipermail/dailydave/2008-October/005360.html","http://marc.info/?l=bugtraq&m=125856010926699&w=2","http://searchsecurity.techtarget.com.au/articles/27154-TCP-is-fundamentally-borked"],"products":["bsd:bsd","bsdi:bsd_os","cisco:catalyst_blade_switch_3020_firmware","cisco:catalyst_blade_switch_3120_firmware","cisco:catalyst_blade_switch_3120x_firmware","cisco:ios","dragonflybsd:dragonflybsd","freebsd:freebsd","linux:linux_kernel","microsoft:windows_2000","microsoft:windows_server_2003","microsoft:windows_server_2008","microsoft:windows_vista","microsoft:windows_xp","midnightbsd:midnightbsd","netbsd:netbsd","openbsd:openbsd","oracle:solaris","trustedbsd:trustedbsd"],"source":"nvd","synced_at":"2026-10-19T19:52:44.811608366+00:00"},"epss":{"cve":"CVE-2008-4609","score":0.32123,"percentile":0.98316,"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."]}