JLSEC-2026-1148

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.1 and 2.12.9, an MQTT client could include protocol control characters in subscription filters that were later forwarded as NATS protocol data to route or leafnode connections, corrupti...

CVE-2026-44092 Missing input validation / stripping of CRLF characters in SystemConfigManager

An unauthenticated remote attacker can inject malicious input into the ModbusServer application because it does not validate the input it fetches from MQTT. This may lead to integrity and availability loss...

PT-2026-56562

Name of the Vulnerable Software and Affected Versions NATS Server versions prior to 2.14.3 NATS Server versions prior to 2.12.12 Description An authenticated MQTT client can subscribe to the internal $MQTT.deliver.pubrel subject family. This action allows the client to bypass configured subscribe...

TOTOLINK T6 Buffer Overflow Vulnerability

TOTOLINK T6 is a wireless dual-band router from China's TOTOLINK, which supports MQTT protocol and Telnet service, and is mainly used for home and small business networking. The TOTOLINK T6 suffers from a buffer overflow vulnerability, which originates from the failure of parameter s in the MQTT...

CVE-2022-20155

In ipucorejqsmsgtransportkernelwritesync of ipu-core-jqs-msg-transport.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product:...

Cesanta Mongoose buffer overread vulnerability (CNVD-2019-09626)

Mongoose is a cross-platform embedded Web server and networking libraries , its features include TCP, HTTP clients and servers , WebSocket clients and servers , MQTT clients and proxies and so on. A heap buffer over-read vulnerability exists in the MQTT packet parsing feature...