CVE-2025-68471 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1
https://github.com/avahi/avahi/issues/678
https://github.com/avahi/avahi/security/advisories/GHSA-56rf-42xr-qmmg

History

Mon, 12 Jan 2026 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 12 Jan 2026 18:00:00 +0000

Type	Values Removed	Values Added
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 2 unsolicited announcements with CNAME resource records 2 seconds apart.
Title		Avahi has a reachable assertion in lookup_start
Weaknesses		CWE-617
References		https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1 https://github.com/avahi/avahi/issues/678 https://github.com/avahi/avahi/security/advisories/GHSA-56rf-42xr-qmmg
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-01-12T17:39:57.416Z

Updated: 2026-01-12T18:42:26.343Z

Reserved: 2025-12-18T13:48:59.555Z

Link: CVE-2025-68471

Vulnrichment

Updated: 2026-01-12T18:42:22.105Z

NVD

Status : Received

Published: 2026-01-12T18:15:48.327

Modified: 2026-01-12T18:15:48.327

Link: CVE-2025-68471

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-617

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