CVE-2025-68471

MEDIUM EPSS 27.2%
Published Jan 12, 20265mo ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Jan 12, 2026 5mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
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

Threat Intelligence

EPSS Exploit Probability
27.2% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-617

Affected Products 2

VendorProductVersionRange
avahiavahi* <0.9
avahiavahi0.9any

References 3

  • github.com https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1
    Patch
  • github.com https://github.com/avahi/avahi/issues/678
    ExploitIssue TrackingPatch
  • github.com https://github.com/avahi/avahi/security/advisories/GHSA-56rf-42xr-qmmg
    ExploitPatchVendor Advisory

Remediation

  • github.com https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1
    Patch
  • github.com https://github.com/avahi/avahi/issues/678
    ExploitIssue TrackingPatch
  • github.com https://github.com/avahi/avahi/security/advisories/GHSA-56rf-42xr-qmmg
    ExploitPatchVendor Advisory