{"cve":"CVE-2009-0778","nvd":{"published":"2009-03-12T15:20:49.780","modified":"2026-06-16T23:05:47.703","status":"Modified","description":"The icmp_send function in net/ipv4/icmp.c in the Linux kernel before 2.6.25, when configured as a router with a REJECT route, does not properly manage the Protocol Independent Destination Cache (aka DST) in some situations involving transmission of an ICMP Host Unreachable message, which allows remote attackers to cause a denial of service (connectivity outage) by sending a large series of packets to many destination IP addresses within this REJECT route, related to an \"rt_cache leak.\"","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7c0ecc4c4f8fd90988aab8a95297b9c0038b6160","http://openwall.com/lists/oss-security/2009/03/11/2","http://secunia.com/advisories/33758","http://secunia.com/advisories/37471","http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25"],"products":["linux:linux_kernel","vmware:esx","vmware:server","vmware:vcenter","vmware:virtualcenter","vmware:vma"],"source":"nvd","synced_at":"2026-10-19T19:53:23.791937413+00:00"},"epss":{"cve":"CVE-2009-0778","score":0.04623,"percentile":0.917,"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."]}