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Medium severity · published Jan 12, 2026
CVE-2025-68276
Avahi has a reachable assertion in avahi_wide_area_scan_cache
5.5
CVSS
0.2%
EPSS
No
On KEV
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, an unprivileged local users can crash avahi-daemon (with wide-area disabled) by creating record browsers with the AVAHI_LOOKUP_USE_WIDE_AREA flag set via D-Bus. This can be done by either calling the RecordBrowserNew method directly or creating hostname/address/service resolvers/browsers that create those browsers internally themselves.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AV
avahi · avahi
<= 0.9-rc2 · source: vendor, NVD
Affected product
AV
avahi
avahi
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-68276
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-68276
Patch
https://github.com/avahi/avahi/commit/ede7048475c5d47d53890e3bc1350dda8e0b3688
Issue Tracking
https://github.com/avahi/avahi/pull/806
Vendor Advisory
https://github.com/avahi/avahi/security/advisories/GHSA-mhf3-865v-g5rc
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