AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2009-0778

HIGH · CVSS 7.1 EPSS 4.62%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-03-12 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.1. It affects Linux. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2009-0778
Severity
HIGH
CVSS
7.1
EPSS
4.62%
Linux

Original NVD 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."