CVE-2026-5856 Contiki-NG DNS/mDNS Resolver Out-of-Bounds Read via Unchecked skip_name Traversal Before Transaction-ID Validation

Contiki-NG's DNS/mDNS resolver skipname in os/services/resolv/resolv.c walks DNS wire-format name labels with no packet-boundary check, and the caller in newdata invokes it in a loop iterating nquestions times from the attacker-controlled DNS header before validating the transaction ID. An attack...

CVE-2026-48045

The CVE-2026-48045 issue affects python-zeroconf (Zeroconf Pure Python) where AsyncListener.handle_query_or_defer retains every truncated TC-bit mDNS query per source in self._deferred[addr] and arms per-address timers in self._timers[addr]. This unbounded queue growth on LAN-local hosts (UDP/535...

CVE-2026-48045

Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.12, AsyncListener.handlequeryordefer retained every truncated TC-bit incoming query, each up to MAXMSGABSOLUTE = 8966 bytes, in self.deferredaddr and armed a per-address timer in self.timersaddr without...

CVE-2026-30872 OpenWrt Project has a Stack-based Buffer Overflow vulnerability via IPv6 reverse DNS lookup

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the matchipv6addresses function, triggered when processing PTR queries for IPv6 reverse DNS domains .ip6.arpa receiv...

EUVD-2026-13249

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the matchipv6addresses function, triggered when processing PTR queries for IPv6 reverse DNS domains .ip6.arpa receiv...

EUVD-2026-13247

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the parsequestion function. The issue is triggered by PTR queries for reverse DNS domains .in-addr.arpa and .ip6.arp...

CVE-2026-30871

OpenWrt mdns daemon vulnerability (CVE-2026-30871) affects versions prior to 24.10.6 and 25.12.1. A stack-based buffer overflow in parse_question is triggered by PTR queries (reverse DNS: .in-addr.arpa and .ip6.arpa). DNS packets received on UDP port 5353 are expanded by dn_expand into an 8096-by...

PT-2026-26380

Name of the Vulnerable Software and Affected Versions OpenWrt Project versions prior to 24.10.6 and versions prior to 25.12.1 Description The OpenWrt Project, a Linux operating system for embedded devices, is affected by a Stack-based Buffer Overflow in the mdns daemon. The issue resides within t...

CVE-2026-30872: Stack-based Buffer Overflow

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the matchipv6addresses function, triggered when processing PTR queries for IPv6 reverse DNS domains .ip6.arpa receiv...

CVE-2026-30871: Stack-based Buffer Overflow

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the parsequestion function. The issue is triggered by PTR queries for reverse DNS domains .in-addr.arpa and .ip6.arp...

Flipper Zero AirPlay mDNS Discovery Scanner

This project provides a safe and non-intrusive discovery tool for identifying AirPlay-enabled devices on a local network using Flipper Zero with the WiFi Dev Board ESP32. The scanner passively listens for mDNS Multicast DNS broadcast traffic on UDP port 5353...

MiracleLinux 3 : avahi-0.6.16-10.AXS3 (AXSA:2011-237:01)

The remote MiracleLinux 3 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2011-237:01 advisory. Avahi is a system which facilitates service discovery on a local network -- this means that you can plug your laptop or computer into a network and instantly ...

mDNS Service Amplification Attack (UDP) - Active Check

A publicly accessible service supporting the Multicast DNS mDNS protocol can be exploited to participate in a Distributed Denial of Service DDoS attack. SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the...

EUVD-1999-0438

Malware in sbrugna...

EUVD-2015-2897

Malware in sbrugna...

CVE-1999-0438

Remote attackers can perform a denial of service in WebRamp systems by sending a malicious UDP packet to port 5353, changing its IP address...

Synology DiskStation Manager Exposure of Sensitive Information to an Unauthorized Actor (CVE-2015-2809)

The Multicast DNS mDNS responder in Synology DiskStation Manager DSM before 3.1 inadvertently responds to unicast queries with source addresses that are not link-local, which allows remote attackers to cause a denial of service traffic amplification or obtain potentially sensitive information via...

Synology DiskStation Manager (DSM) < 3.1 Information Disclosure Vulnerability (Feb 2015)

Synology DiskStation Manager DSM is prone to an information disclosure vulnerability. SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...

SUSE CVE-2011-1002

avahi-core/socket.c in avahi-daemon in Avahi before 0.6.29 allows remote attackers to cause a denial of service infinite loop via an empty mDNS 1 IPv4 or 2 IPv6 UDP packet to port 5353. NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-2244...

SUSE CVE-2017-6520

The Multicast DNS mDNS responder used in BOSE Soundtouch 30 inadvertently responds to IPv4 unicast queries with source addresses that are not link-local, which allows remote attackers to cause a denial of service traffic amplification or obtain potentially sensitive information via port-5353 UDP...