Emqx
Monthly
NanoMQ MQTT Broker versions 0.24.6 and earlier are vulnerable to an out-of-bounds read in the MQTT v5 Variable Byte Integer parser, which lacks proper bounds validation when processing 5-byte varints. Remote unauthenticated attackers can trigger a denial of service by sending malformed MQTT packets that crash the broker. No patch is currently available for this vulnerability.
Remote code execution in EMQX's plugin installation API allows an attacker who has obtained a compromised dashboard administrator credential or plugin-install-capable API key to upload and execute arbitrary Erlang code with full EMQX process privileges. Prior to versions 5.8.11, 5.9.3, 5.10.4, 6.0.3, 6.1.2, and 6.2.1, installation grants issued via `emqx ctl plugins allow` had no expiration and no cryptographic binding to specific package bytes, meaning a stale permit could be reused with attacker-controlled .tar.gz content submitted to POST /api/v5/plugins/install. No public exploit has been identified at time of analysis, and this vulnerability is not listed in the CISA KEV catalog.
Race condition in EMQX MQTT broker versions up to 6.2.0 allows authenticated remote attackers to cause limited availability impact through malformed QoS 2 PUBLISH packet handling in persistent sessions. The vulnerability exploits timing windows in the emqx_persistent_session_ds.erl module, though successful exploitation is marked as difficult with high attack complexity. A proof-of-concept exploit is publicly available on GitHub (Pathfind-tama/Report_EMQX_MQTT), demonstrating QoS 2 message duplication attacks. CVSS 3.1, exploitability requires low-privilege authentication and precise timing, limiting real-world risk despite public POC.
CocoaMQTT library versions prior to 2.2.2 allow remote denial of service when parsing malformed MQTT packets from a broker, causing immediate application crashes on iOS, macOS, and tvOS devices. An attacker or compromised MQTT broker can publish a 4-byte malformed payload with the RETAIN flag to persist it indefinitely, ensuring every vulnerable client that subscribes receives the crash-inducing packet, effectively bricking the application until manual intervention on the broker. The vulnerability requires an authenticated user context (PR:L in CVSS vector) but impacts application availability with high severity; patch version 2.2.2 is available.
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. [CVSS 5.3 MEDIUM]
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In version 0.24.6, NanoMQ has a protocol parsing / forwarding inconsistency when handling shared subscriptions ($share/). [CVSS 6.5 MEDIUM]
An issue in nanomq v0.22.7 allows attackers to cause a Denial of Service (DoS) via a crafted request. The number of data packets received in the recv-q queue of the Nanomq process continues to increase, causing the nanomq broker to fall into a deadlock and be unable to provide normal services. [CVSS 7.5 HIGH]
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). [CVSS 4.9 MEDIUM]
NanoMQ v0.22.10 was discovered to contain a memory leak which allows attackers to cause a Denial of Service (DoS) via a crafted PUBLISH message.
NanoMQ v0.22.10 was discovered to contain a heap overflow which allows attackers to cause a Denial of Service (DoS) via a crafted CONNECT message.
CVE-2024-42646 is a segmentation fault vulnerability in NanoMQ v0.21.10 that allows unauthenticated remote attackers to trigger a denial of service condition by sending specially crafted messages. This is a network-accessible DoS vulnerability with high availability impact (CVSS 7.5) that affects message broker deployments. The vulnerability requires no authentication or user interaction, making it easily exploitable in production environments.
A vulnerability classified as problematic was found in emqx neuron up to 2.10.0. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
A vulnerability classified as critical has been found in emqx neuron up to 2.10.0. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
An invalid read size in Nanomq v0.21.9 allows attackers to cause a Denial of Service (DoS). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A heap-buffer-overflow vulnerability in the read_byte function in NanoMQ v.0.21.7 allows attackers to cause a denial of service via transmission of crafted hexstreams. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
Null Pointer Dereference vulnerability in topic_filtern function in mqtt_parser.c in NanoMQ 0.21.7 allows attackers to cause a denial of service. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Buffer Overflow vulnerability in the get_var_integer function in mqtt_parser.c in NanoMQ 0.21.7 allows remote attackers to cause a denial of service via a series of specially crafted hexstreams. Rated low severity (CVSS 2.7), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
nanomq 0.21.2 contains a Use-After-Free vulnerability in /nanomq/nng/src/core/socket.c. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
An issue in the emqx_sn plugin of EMQX v4.3.8 allows attackers to execute a directory traversal via uploading a crafted .txt file. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
NanoMQ 0.16.5 is vulnerable to heap-use-after-free in the nano_ctx_send function of nmq_mqtt.c. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.
NanoMQ 0.17.5 has a one-byte heap-based buffer over-read in the conn_handler function of mqtt_parser.c when it processes malformed messages. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A use-after-free vulnerability exists in NanoMQ 0.17.2. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
A memory leak vulnerability exists in NanoMQ 0.17.2. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
In NanoMQ v0.15.0-0, segment fault with Null Pointer Dereference occurs in the process of decoding subinfo_decode and unsubinfo_decode. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
In NanoMQ v0.15.0-0, a Heap overflow occurs in copyn_utf8_str function of mqtt_parser.c. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
In NanoMQ v0.15.0-0, Heap overflow occurs in read_byte function of mqtt_code.c. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
EMQ X Broker versions prior to 4.2.8 are vulnerable to a denial of service attack as a result of excessive memory consumption due to the handling of untrusted inputs. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Deserialization of Untrusted Data vulnerability could allow attackers to execute arbitrary code through malicious serialized objects.
NanoMQ MQTT Broker versions 0.24.6 and earlier are vulnerable to an out-of-bounds read in the MQTT v5 Variable Byte Integer parser, which lacks proper bounds validation when processing 5-byte varints. Remote unauthenticated attackers can trigger a denial of service by sending malformed MQTT packets that crash the broker. No patch is currently available for this vulnerability.
Remote code execution in EMQX's plugin installation API allows an attacker who has obtained a compromised dashboard administrator credential or plugin-install-capable API key to upload and execute arbitrary Erlang code with full EMQX process privileges. Prior to versions 5.8.11, 5.9.3, 5.10.4, 6.0.3, 6.1.2, and 6.2.1, installation grants issued via `emqx ctl plugins allow` had no expiration and no cryptographic binding to specific package bytes, meaning a stale permit could be reused with attacker-controlled .tar.gz content submitted to POST /api/v5/plugins/install. No public exploit has been identified at time of analysis, and this vulnerability is not listed in the CISA KEV catalog.
Race condition in EMQX MQTT broker versions up to 6.2.0 allows authenticated remote attackers to cause limited availability impact through malformed QoS 2 PUBLISH packet handling in persistent sessions. The vulnerability exploits timing windows in the emqx_persistent_session_ds.erl module, though successful exploitation is marked as difficult with high attack complexity. A proof-of-concept exploit is publicly available on GitHub (Pathfind-tama/Report_EMQX_MQTT), demonstrating QoS 2 message duplication attacks. CVSS 3.1, exploitability requires low-privilege authentication and precise timing, limiting real-world risk despite public POC.
CocoaMQTT library versions prior to 2.2.2 allow remote denial of service when parsing malformed MQTT packets from a broker, causing immediate application crashes on iOS, macOS, and tvOS devices. An attacker or compromised MQTT broker can publish a 4-byte malformed payload with the RETAIN flag to persist it indefinitely, ensuring every vulnerable client that subscribes receives the crash-inducing packet, effectively bricking the application until manual intervention on the broker. The vulnerability requires an authenticated user context (PR:L in CVSS vector) but impacts application availability with high severity; patch version 2.2.2 is available.
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. [CVSS 5.3 MEDIUM]
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In version 0.24.6, NanoMQ has a protocol parsing / forwarding inconsistency when handling shared subscriptions ($share/). [CVSS 6.5 MEDIUM]
An issue in nanomq v0.22.7 allows attackers to cause a Denial of Service (DoS) via a crafted request. The number of data packets received in the recv-q queue of the Nanomq process continues to increase, causing the nanomq broker to fall into a deadlock and be unable to provide normal services. [CVSS 7.5 HIGH]
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). [CVSS 4.9 MEDIUM]
NanoMQ v0.22.10 was discovered to contain a memory leak which allows attackers to cause a Denial of Service (DoS) via a crafted PUBLISH message.
NanoMQ v0.22.10 was discovered to contain a heap overflow which allows attackers to cause a Denial of Service (DoS) via a crafted CONNECT message.
CVE-2024-42646 is a segmentation fault vulnerability in NanoMQ v0.21.10 that allows unauthenticated remote attackers to trigger a denial of service condition by sending specially crafted messages. This is a network-accessible DoS vulnerability with high availability impact (CVSS 7.5) that affects message broker deployments. The vulnerability requires no authentication or user interaction, making it easily exploitable in production environments.
A vulnerability classified as problematic was found in emqx neuron up to 2.10.0. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
A vulnerability classified as critical has been found in emqx neuron up to 2.10.0. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
An invalid read size in Nanomq v0.21.9 allows attackers to cause a Denial of Service (DoS). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A heap-buffer-overflow vulnerability in the read_byte function in NanoMQ v.0.21.7 allows attackers to cause a denial of service via transmission of crafted hexstreams. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
Null Pointer Dereference vulnerability in topic_filtern function in mqtt_parser.c in NanoMQ 0.21.7 allows attackers to cause a denial of service. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Buffer Overflow vulnerability in the get_var_integer function in mqtt_parser.c in NanoMQ 0.21.7 allows remote attackers to cause a denial of service via a series of specially crafted hexstreams. Rated low severity (CVSS 2.7), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
nanomq 0.21.2 contains a Use-After-Free vulnerability in /nanomq/nng/src/core/socket.c. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
An issue in the emqx_sn plugin of EMQX v4.3.8 allows attackers to execute a directory traversal via uploading a crafted .txt file. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
NanoMQ 0.16.5 is vulnerable to heap-use-after-free in the nano_ctx_send function of nmq_mqtt.c. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.
NanoMQ 0.17.5 has a one-byte heap-based buffer over-read in the conn_handler function of mqtt_parser.c when it processes malformed messages. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
A use-after-free vulnerability exists in NanoMQ 0.17.2. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
A memory leak vulnerability exists in NanoMQ 0.17.2. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
In NanoMQ v0.15.0-0, segment fault with Null Pointer Dereference occurs in the process of decoding subinfo_decode and unsubinfo_decode. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
In NanoMQ v0.15.0-0, a Heap overflow occurs in copyn_utf8_str function of mqtt_parser.c. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
In NanoMQ v0.15.0-0, Heap overflow occurs in read_byte function of mqtt_code.c. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
EMQ X Broker versions prior to 4.2.8 are vulnerable to a denial of service attack as a result of excessive memory consumption due to the handling of untrusted inputs. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Deserialization of Untrusted Data vulnerability could allow attackers to execute arbitrary code through malicious serialized objects.