EUVD-2026-54226

Contiki-NG's MQTT client parsepublishvhdr in os/net/app-layer/mqtt/mqtt.c sets topiclenreceived=1 before checking topiclen against the 64-byte limit, so an over-length topic returns early but leaves the flag set. On the next TCP segment, tcpinput re-invokes the parser with topicreceived==0, and t...

CVE-2026-58210

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, an unauthenticated MQTT client could cause the server to retain large incomplete MQTT CONNECT packets before authentication completed, consuming server memory while the...

SunGrow WiNet-S 安全漏洞

SunGrow WiNet-S is a LAN communication module from SunGrow, China. A trust management issue vulnerability exists in SunGrow WiNet-S version V200.001.00.P027 and prior versions, which stems from the use of hard-coded MQTT credentials. An attacker could use this vulnerability to send arbitrary...

Ruijie Networks RG-EW300N 安全漏洞

Ruijie Networks RG-EW300N is an intelligent wireless router from Ruijie Networks China. A security vulnerability exists in the Ruijie Networks RG-EW300N version 1.300.1422, which originates from a remote code execution vulnerability via modified MQTT proxy messages...