Home/CVE/Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. Prior to ve
CVE

CVE-2026-34933

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. Prior to ve

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. Prior to version 0.9-rc4, any unprivileged local user can crash avahi-daemon by sending a single D-Bus method call with conflicting publish flags. This issue has been patched in version 0.9-rc4.

MEDIUM · CVSS 5.5 EPSS 8e-05
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-617Reachable Assertion
▤

Affected Products & Versions

2
avahi< 0.9
avahiall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · GHSA-w65r-6gxh-vhvcgithub.com
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 Apr 2026 · 11:17 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

6
usnUSN-8269-1
suse-csafSUSE-SU-2026:21631-1
suse-csafopenSUSE-SU-2026:10670-1
suse-csafSUSE-SU-2026:21417-1
msrcCVE-2026-34933
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/avahi/avahi/commit/625ca0fac19229f6dfa3a6c6b698ae657187e50cPatch
https://github.com/avahi/avahi/pull/891Issue TrackingPatch
http://www.openwall.com/lists/oss-security/2026/04/11/9ExploitMailing ListThird Party Advisory
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