PT-2026-2283 · Avahi+3 · Avahi+3

Published 2026-01-12 · Updated 2026-02-26 · CVE-2025-68471

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Avahi versions prior to 0.9-rc2

Description Avahi, a system for service discovery on a local network using the mDNS/DNS-SD protocol suite, is susceptible to a denial-of-service condition. Specifically, the avahi-daemon process can be crashed by receiving two unsolicited announcements containing CNAME resource records within a two-second interval.

Recommendations Update to version 0.9-rc2 or later.

Exploit

Fix

DoS

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

AZL-74277

AZL-74291

BDU:2026-03599

CVE-2025-68471

ECHO-B6A0-85DE-738F

GHSA-56RF-42XR-QMMG

MGASA-2026-0016

OESA-2026-1236

OPENSUSE-SU-2026:10052-1

OPENSUSE-SU-2026:20110-1

RHSA-2026:11316

SUSE-SU-2026:0143-1

SUSE-SU-2026:0259-1

SUSE-SU-2026:0422-1

SUSE-SU-2026:0577-1

SUSE-SU-2026:20145-1

SUSE-SU-2026:20167-1

SUSE-SU-2026:20525-1

SUSE-SU-2026:21445-1

USN-7967-1

Affected Products

Avahi

Linuxmint

Red Os

Ubuntu

References · 59

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68471.json · Exploit
• https://github.com/avahi/avahi/security/advisories/GHSA-56rf-42xr-qmmg · Patch
• https://github.com/avahi/avahi/issues/678 · Patch
• https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:20525-1 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2025-68471 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2025-68471 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-68471 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-13-CVE-2025-68471 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7967-1 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-74277 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68471 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-68471 · Security Note
• https://osv.dev/vulnerability/OESA-2026-1236 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0143-1 · Vendor Advisory