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Linux Distros Unpatched Vulnerability : CVE-2025-68471

medium Nessus Plugin ID 282615

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - 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 2 unsolicited announcements with CNAME resource records 2 seconds apart. (CVE-2025-68471)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2025-68471

https://security-tracker.debian.org/tracker/CVE-2025-68471

Plugin Details

Severity: Medium

ID: 282615

File Name: unpatched_CVE_2025_68471.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 1/12/2026

Updated: 1/13/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.8

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2025-68471

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: p-cpe:/a:centos:centos:avahi-libs, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:avahi-ui, p-cpe:/a:centos:centos:avahi-devel, p-cpe:/a:redhat:enterprise_linux:avahi-libs, p-cpe:/a:redhat:enterprise_linux:avahi-compat-howl, p-cpe:/a:redhat:enterprise_linux:avahi-qt4-devel, p-cpe:/a:centos:centos:avahi-ui-gtk3, p-cpe:/a:redhat:enterprise_linux:avahi-qt3, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:python3-avahi, p-cpe:/a:centos:centos:avahi-qt4, p-cpe:/a:centos:centos:python3-avahi, p-cpe:/a:centos:centos:avahi-dnsconfd, p-cpe:/a:centos:centos:avahi-qt3, p-cpe:/a:redhat:enterprise_linux:avahi-autoipd, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:redhat:enterprise_linux:avahi-ui, p-cpe:/a:centos:centos:avahi-glib, p-cpe:/a:centos:centos:avahi-gobject-devel, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:avahi-ui-tools, p-cpe:/a:redhat:enterprise_linux:avahi-qt3-devel, p-cpe:/a:redhat:enterprise_linux:avahi-gobject, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:avahi-qt4, p-cpe:/a:redhat:enterprise_linux:avahi-compat-howl-devel, p-cpe:/a:redhat:enterprise_linux:avahi-glib-devel, p-cpe:/a:redhat:enterprise_linux:avahi-gobject-devel, p-cpe:/a:redhat:enterprise_linux:avahi-ui-devel, p-cpe:/a:centos:centos:avahi-compat-libdns_sd, p-cpe:/a:centos:centos:avahi, p-cpe:/a:centos:centos:avahi-ui-devel, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:redhat:enterprise_linux:avahi-tools, p-cpe:/a:redhat:enterprise_linux:avahi, p-cpe:/a:debian:debian_linux:avahi, p-cpe:/a:redhat:enterprise_linux:avahi-compat-libdns_sd-devel, p-cpe:/a:redhat:enterprise_linux:avahi-devel, p-cpe:/a:redhat:enterprise_linux:avahi-glib, p-cpe:/a:centos:centos:avahi-qt3-devel, p-cpe:/a:redhat:enterprise_linux:avahi-dnsconfd, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:avahi-gobject, p-cpe:/a:redhat:enterprise_linux:avahi-compat-libdns_sd, p-cpe:/a:centos:centos:avahi-glib-devel, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:centos:centos:avahi-compat-howl, p-cpe:/a:redhat:enterprise_linux:avahi-ui-gtk3, p-cpe:/a:centos:centos:avahi-compat-howl-devel, p-cpe:/a:centos:centos:avahi-compat-libdns_sd-devel, p-cpe:/a:centos:centos:avahi-tools, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:centos:centos:avahi-qt4-devel, p-cpe:/a:centos:centos:avahi-autoipd, p-cpe:/a:redhat:enterprise_linux:avahi-ui-tools

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 1/12/2026

Reference Information

CVE: CVE-2025-68471