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Case File

CVE-2009-0758

HIGH · CVSS 7.8 EPSS 2.01%

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

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.8. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2009-0758
Severity
HIGH
CVSS
7.8
EPSS
2.01%

Original NVD Description

The originates_from_local_legacy_unicast_socket function in avahi-core/server.c in avahi-daemon 0.6.23 does not account for the network byte order of a port number when processing incoming multicast packets, which allows remote attackers to cause a denial of service (network bandwidth and CPU consumption) via a crafted legacy unicast mDNS query packet that triggers a multicast packet storm.