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CVE-2025-68468

Avahi has a reachable assertion in lookup_multicast_callback

Published: Jan 12, 2026Updated: Jan 16, 2026 Sources: CVE List NVD BDUCWE-617
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.3%
Top 75.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-617

Affected Products

РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Platform V SberLinux OS ServerАО «СберТех»
On-premOS
Operating Systems / linux-distro
AvahiThe Avahi Project
On-prem
Networking Infrastructure / dns-dhcp-ntp
avahiavahi
On-prem
Operating Systems / linux-distro
ооо «ред софт»commercialRUOperating Systemsaka red soft
ао «сбертех»commercialRUOperating Systemsaka ao sbertech, сбертех
the avahi projectoss-projectNetworking Infrastructureaka avahi
avahioss-projectOperating Systemsaka avahi-daemon

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a
github.com
https://github.com/avahi/avahi/issues/683
github.com
https://github.com/avahi/avahi/security/advisories/GHSA-cp79-r4x9-vf52
github.com
and 5 more references View all →

Timeline

Published
Jan 12, 2026
Last Updated
Jan 16, 2026

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