CVE-2025-68471 — MEDIUM (6.5)

Q: How severe is CVE-2025-68471?

CVE-2025-68471 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-68471?

Check the references section above for vendor advisories and patch information. Affected products include: Avahi Avahi.

Vulnerability 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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Avahi	Avahi	< 0.9

Related Weaknesses (CWE)

CWE-617

References

https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1Patch
https://github.com/avahi/avahi/issues/678Issue TrackingExploitPatch
https://github.com/avahi/avahi/security/advisories/GHSA-56rf-42xr-qmmgVendor AdvisoryExploitPatch

FAQ

What is CVE-2025-68471?

CVE-2025-68471 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...

How severe is CVE-2025-68471?

CVE-2025-68471 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-68471?

Check the references section above for vendor advisories and patch information. Affected products include: Avahi Avahi.