{"cve":"CVE-1999-0305","nvd":{"published":"1998-02-01T05:00:00.000","modified":"2026-06-16T21:48:06.863","status":"Modified","description":"The system configuration control (sysctl) facility in BSD based operating systems OpenBSD 2.2 and earlier, and FreeBSD 2.2.5 and earlier, does not properly restrict source routed packets even when the (1) dosourceroute or (2) forwarding variables are set, which allows remote attackers to spoof TCP connections.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://www.openbsd.org/advisories/sourceroute.txt","http://www.osvdb.org/11502","https://exchange.xforce.ibmcloud.com/vulnerabilities/736","http://www.openbsd.org/advisories/sourceroute.txt","http://www.osvdb.org/11502"],"products":["bsdi:bsd_os","freebsd:freebsd","openbsd:openbsd"],"source":"nvd","synced_at":"2026-10-19T19:33:01.030757803+00:00"},"epss":{"cve":"CVE-1999-0305","score":0.01364,"percentile":0.71809,"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."]}