CVE-2026-13491

A vulnerability was detected in 78 xiaozhi-esp32 up to 2.2.6. This vulnerability affects the function Application::GetInstance of the file main/protocols/mqttprotocol.cc of the component MQTT Goodbye Handler. Performing a manipulation of the argument sessionid results in denial of service. The...

CVE-2026-13489

A weakness has been identified in 78 xiaozhi-esp32 up to 2.2.6. Affected by this issue is the function ParseMessage of the file main/mcpserver.cc of the component MCP Response Handler. This manipulation causes improper synchronization. Remote exploitation of the attack is possible. The attack's...

CVE-2026-13491

The CVE-2026-13491 entry concerns 78 xiaozhi-esp32 (up to version 2.2.6) and identifies a vulnerability in the MQTT Goodbye Handler. The issue lies in Application::GetInstance within main/protocols/mqtt_protocol.cc, where manipulating the session_id argument can trigger a denial of service. The a...

CVE-2026-13491

A vulnerability was detected in 78 xiaozhi-esp32 up to 2.2.6. This vulnerability affects the function Application::GetInstance of the file main/protocols/mqttprotocol.cc of the component MQTT Goodbye Handler. Performing a manipulation of the argument sessionid results in denial of service. The...

CVE-2026-13491 78 xiaozhi-esp32 MQTT Goodbye mqtt_protocol.cc GetInstance denial of service

A vulnerability was detected in 78 xiaozhi-esp32 up to 2.2.6. This vulnerability affects the function Application::GetInstance of the file main/protocols/mqttprotocol.cc of the component MQTT Goodbye Handler. Performing a manipulation of the argument sessionid results in denial of service. The...

EUVD-2026-39991

A vulnerability was detected in 78 xiaozhi-esp32 up to 2.2.6. This vulnerability affects the function Application::GetInstance of the file main/protocols/mqttprotocol.cc of the component MQTT Goodbye Handler. Performing a manipulation of the argument sessionid results in denial of service. The...

CVE-2026-13489

The CVE-2026-13489 entry describes a vulnerability in 78 xiaozhi-esp32

CVE-2026-13489 78 xiaozhi-esp32 MCP Response mcp_server.cc ParseMessage improper synchronization

A weakness has been identified in 78 xiaozhi-esp32 up to 2.2.6. Affected by this issue is the function ParseMessage of the file main/mcpserver.cc of the component MCP Response Handler. This manipulation causes improper synchronization. Remote exploitation of the attack is possible. The attack's...

PT-2026-53102

Name of the Vulnerable Software and Affected Versions xiaozhi-esp32 versions prior to 2.2.7 Description A weakness in the MCP Response Handler component allows for improper synchronization. This issue occurs within the ParseMessage function located in the main/mcp server.cc file. Remote...

PT-2026-53104

Name of the Vulnerable Software and Affected Versions xiaozhi-esp32 versions prior to 2.2.7 Description A remote denial of service can be triggered through the manipulation of the session id argument. This issue resides within the Application::GetInstance function located in the main/protocols/mq...

CVE-2026-42854

arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer multipart form parser in arduino-esp32 allocates a Variable Length Array VLA on the stack whose size is derived from an attacker-controlled HTTP head...

Exploit for CVE-2026-38427

CVE-2026-38427: Integer Wraparound → Heap Buffer Overflow in T...

Exploit for CVE-2026-38426

CVE-2026-38426: strcpy Stack Buffer Overflow in Tasmota fetc...

bleak

BLEAK — Bluetooth Link Exploitation & Attack Knowledgebase...

CVE-2026-42855

arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer Digest authentication implementation in arduino-esp32 computes the authentication hash using the URI field from the client's Authorization header,...

CVE-2026-42854

arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer multipart form parser in arduino-esp32 allocates a Variable Length Array VLA on the stack whose size is derived from an attacker-controlled HTTP head...

CVE-2026-42854 arduino-esp32: Stack buffer overflow in WebServer multipart boundary parsing leads to remote crash potential RCE

arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer multipart form parser in arduino-esp32 allocates a Variable Length Array VLA on the stack whose size is derived from an attacker-controlled HTTP head...

CVE-2026-42854

Summary: The Arduino-ESP32 core is affected by a stack overflow in the WebServer multipart boundary parser. A boundary derived from the HTTP header (Content-Type: multipart/form-data; boundary=...) with length > ~8000 can overflow the 8192-byte loopTask stack, potentially enabling remote code ...

CVE-2026-42854 arduino-esp32: Stack buffer overflow in WebServer multipart boundary parsing leads to remote crash potential RCE

arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer multipart form parser in arduino-esp32 allocates a Variable Length Array VLA on the stack whose size is derived from an attacker-controlled HTTP head...

CVE-2026-42855

arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer Digest authentication implementation in arduino-esp32 computes the authentication hash using the URI field from the client's Authorization header,...