14 matches found
CVE-2026-74282 tipc: prevent snt_unacked underflow on CONN_ACK
In the Linux kernel, the following vulnerability has been resolved: tipc: prevent sntunacked underflow on CONNACK tipcskconnprotorcv subtracts the peer-supplied connection ack count from the unsigned 16-bit send counter sntunacked without checking that it does not exceed the number of messages...
CVE-2025-56352
In tinyMQTT commit 6226ade15bd4f97be2d196352e64dd10937c1962 2024-02-18, the broker mishandles protocol violations during CONNECT packet parsing. When receiving a CONNECT packet with a zero-length Client ID while CleanSession is set to 0, the broker correctly replies with a CONNACK return code 0x0...
EUVD-2025-209887
In tinyMQTT commit 6226ade15bd4f97be2d196352e64dd10937c1962 2024-02-18, the broker mishandles protocol violations during CONNECT packet parsing. When receiving a CONNECT packet with a zero-length Client ID while CleanSession is set to 0, the broker correctly replies with a CONNACK return code 0x0...
curl: MQTT CONNACK Packet Type Bypass leads to RCE via Malicious Broker
Summary: mqttverifyconnack in lib/mqtt.c never checks that the received packet type is actually a CONNACK 0x20. The constant MQTTMSGCONNACK is commented out at line 45, making the check impossible to write. A malicious broker can send any packet — e.g. PUBACK 0x40 — with remaininglength=2 and...
CVE-2025-66023
NanoMQ MQTT Broker NanoMQ is an all-around Edge Messaging Platform. Versions prior to 0.24.5 have a Heap-Use-After-Free UAF vulnerability within the MQTT bridge client component implemented via the underlying NanoNNG library. The vulnerability is triggered when NanoMQ acts as a bridge connecting ...
EUVD-2025-206141
NanoMQ MQTT Broker NanoMQ is an all-around Edge Messaging Platform. Versions prior to 0.24.5 have a Heap-Use-After-Free UAF vulnerability within the MQTT bridge client component implemented via the underlying NanoNNG library. The vulnerability is triggered when NanoMQ acts as a bridge connecting ...
CVE-2025-66023 NanoMQ has Use-After-Free of malformed bridging message
NanoMQ MQTT Broker NanoMQ is an all-around Edge Messaging Platform. Versions prior to 0.24.5 have a Heap-Use-After-Free UAF vulnerability within the MQTT bridge client component implemented via the underlying NanoNNG library. The vulnerability is triggered when NanoMQ acts as a bridge connecting ...
SUSE CVE-2021-28166
In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur...
DEBIAN-CVE-2021-28166
In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur...
CVE-2021-28166
In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur...
Null pointer dereference
In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur...
UBUNTU-CVE-2021-28166
In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur...
CVE-2021-28166
In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur...
CVE-2021-28166: NULL Pointer Dereference
In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur...