CVE-2025-68468

MEDIUM

avahi < 0.9 - Denial of Service via CNAME Resource Record Expiration

Title source: llm
STIX 2.1

Description

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. As soon as they expire avahi-daemon crashes.

References (3)

Core 3

Scores

CVSS v3 6.5
EPSS 0.0033
EPSS Percentile 24.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-617
Status published
Products (2)
avahi/avahi 0.9 rc1
avahi/avahi < 0.9
Published Jan 12, 2026
Tracked Since Feb 18, 2026