CVE-2025-68471
Avahi has a reachable assertion in lookup_start
MEDIUM
6.5
CVSS Score
Published: January 12, 2026 at 05:39 PM UTC
Updated: June 17, 2026 at 09:59 AM UTC
1 product affected across 1 vendorAvahi
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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (3)
x_refsource_CONFIRMExploitPatchVendor Advisory
Source: cverecord
https://github.com/avahi/avahi/security/advisories/GHSA-56rf-42xr-qmmgx_refsource_MISCExploitIssue TrackingPatch
Source: cverecord
https://github.com/avahi/avahi/issues/678x_refsource_MISCPatch
Source: cverecord
https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
6.5MEDIUMGitHub_M
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusANALYZED
CWE
CWE-617
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