EUVD-2026-52964

Buffer Overflow vulnerability exists in open62541 1.5.5 when the Local Discovery Server LDS is built with multicast discovery enabled through the MDNSD backend. An unauthenticated remote attacker can send a RegisterServer or RegisterServer2 request containing many unique discoveryUrls. This allow...

CVE-2026-30872

A flaw was found in OpenWrt's mdns daemon. A remote attacker can exploit a stack-based buffer overflow vulnerability by sending a specially crafted DNS query. This occurs when processing IPv6 reverse DNS queries, where the system fails to validate the length of incoming data. Successful...

OpenWrt security vulnerabilities

OpenWrt is an open-source Linux operating system designed for embedded devices. Versions prior to OpenWrt 24.10.6 and 25.12.1 contained security vulnerabilities. These vulnerabilities were caused by a stack buffer overflow in the parsequestion function of the mdns daemon, which could lead to remo...

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...