Avahi up to 0.9-rc2 mDNS/DNS-SD RecordBrowserNew assertion

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Avahi up to 0.9-rc2. The impacted element is the function RecordBrowserNew of the component mDNS/DNS-SD. Such manipulation leads to assertion. This vulnerability is referenced as CVE-2025-68276. The attack can only be performed from a local environment. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Avahi up to 0.9-rc2. Affected by this issue is the function RecordBrowserNew of the component mDNS/DNS-SD. The manipulation with an unknown input leads to a assertion vulnerability. Using CWE to declare the problem leads to CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. Impacted is availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2025-68276 since 12/16/2025. The exploitation is known to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 282612 (Linux Distros Unpatched Vulnerability : CVE-2025-68276), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (282612), EUVD (EUVD-2025-206280) and CERT Bund (WID-SEC-2026-0066). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Ubuntu Linux
  • SUSE Linux
  • SUSE openSUSE
  • Open Source avahi

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.5
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Assertion
CWE: CWE-617
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 282612
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-68276

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/16/2025 CVE reserved
01/12/2026 +27 days Advisory disclosed
01/12/2026 +0 days VulDB entry created
01/24/2026 +12 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-68276 (🔒)
GCVE (CVE): GCVE-0-2025-68276
GCVE (VulDB): GCVE-100-340490
EUVD: 🔒
CERT Bund: WID-SEC-2026-0066 - avahi-daemon: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 01/12/2026 19:08
Updated: 01/24/2026 09:06
Changes: 01/12/2026 19:08 (61), 01/13/2026 18:41 (1), 01/14/2026 00:44 (7), 01/14/2026 04:40 (2), 01/24/2026 09:06 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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