CVE-2026-109588

Numeric truncation of the buffer length in the MPU buffer authorization check in FreeRTOS-Kernel V11.3.0 and V11.3.1 on the Arm Cortex-R82 Armv8-R AArch64 MPU port might allow, under certain conditions, an unprivileged task on MPU-enabled builds to read or write privileged kernel memory beyond th...

CVE-2026-109587

Incorrect authorization in the Arm Cortex-R82 Armv8-R AArch64 MPU port in FreeRTOS-Kernel V11.3.0 and V11.3.1 might allow an unprivileged task on MPU-enabled builds to read and write privileged kernel memory outside the regions assigned to it, via a buffer argument passed to an MPU system call. T...

CVE-2026-102551

Improper verification of the source of a communication channel in the IPv6 Router Advertisement handler in Amazon FreeRTOS-Plus-TCP before V4.4.2 might allow a remote third-party to influence an endpoint's IPv6 default gateway, on-link prefix, and address configuration via a crafted Router...

CVE-2026-102552

Improper verification of the source of a communication channel in the DNS resolver in Amazon FreeRTOS-Plus-TCP before V4.4.2 might allow remote third-party to insert a chosen address into the device's DNS cache via a forged DNS reply. To remediate this issue, users should upgrade to version V4.4....

CVE-2026-102552

The Amazon FreeRTOS-Plus-TCP DNS resolver is vulnerable to improper verification of the source of a communication channel in versions prior to V4.4.2 . This flaw allows a remote third-party to perform a DNS cache poisoning attack by inserting a chosen address into the device's DNS cache via a for...

CVE-2026-102551

Amazon FreeRTOS-Plus-TCP is vulnerable to improper verification of the source of a communication channel in its IPv6 Router Advertisement handler prior to version V4.4.2 . A remote third-party could exploit this by sending a crafted Router Advertisement to influence an endpoint's IPv6 default gat...

CVE-2026-109588

The FreeRTOS-Kernel (versions V11.3.0 and V11.3.1 ) is vulnerable to a numeric truncation error in the MPU buffer authorization check on the Arm Cortex-R82 (Armv8-R AArch64) MPU port. This flaw may allow an unprivileged task on MPU-enabled builds to read or write privileged kernel memory beyond t...

EUVD-2026-102951

Numeric truncation of the buffer length in the MPU buffer authorization check in FreeRTOS-Kernel V11.3.0 and V11.3.1 on the Arm Cortex-R82 Armv8-R AArch64 MPU port might allow, under certain conditions, an unprivileged task on MPU-enabled builds to read or write privileged kernel memory beyond th...

CVE-2026-109587

The FreeRTOS-Kernel versions V11.3.0 and V11.3.1 contain an incorrect authorization vulnerability within the Arm Cortex-R82 (Armv8-R AArch64) MPU port . This flaw allows an unprivileged task on MPU-enabled builds to read from or write to privileged kernel memory that is outside its assigned regio...

PT-2026-115998

Improper verification of the source of a communication channel in the DNS resolver in Amazon FreeRTOS-Plus-TCP before V4.4.2 might allow remote third-party to insert a chosen address into the device's DNS cache via a forged DNS reply. To remediate this issue, users should upgrade to version V4.4....

PT-2026-115976

Incorrect authorization in the Arm Cortex-R82 Armv8-R AArch64 MPU port in FreeRTOS-Kernel V11.3.0 and V11.3.1 might allow an unprivileged task on MPU-enabled builds to read and write privileged kernel memory outside the regions assigned to it, via a buffer argument passed to an MPU system call. T...

PT-2026-115997

Improper verification of the source of a communication channel in the IPv6 Router Advertisement handler in Amazon FreeRTOS-Plus-TCP before V4.4.2 might allow a remote third-party to influence an endpoint's IPv6 default gateway, on-link prefix, and address configuration via a crafted Router...

PT-2026-115977

Numeric truncation of the buffer length in the MPU buffer authorization check in FreeRTOS-Kernel V11.3.0 and V11.3.1 on the Arm Cortex-R82 Armv8-R AArch64 MPU port might allow, under certain conditions, an unprivileged task on MPU-enabled builds to read or write privileged kernel memory beyond th...

CVE-2025-5688-FreeRTOS-Plus-TCP-Out-of-Bounds-Write

CVE-2025-5688 – FreeRTOS-Plus-TCP Out-of-Bounds Write Exploit Remote memory corruption / DoS / potential RCE trigger in FreeRTOS-Plus-TCP when processing overly long DNS names in LLMNR or mDNS queries Buffer Allocation Scheme 1. Exploit Author: Mohammed Idrees Banyamer Country: Jordan Instagram:...

EUVD-2026-82385

ESPAsyncWebServer is an asynchronous HTTP and WebSocket server library for ESP32, ESP8266, RP2040 and RP2350. Prior to 3.11.1, the multipart/form-data parser in src/WebRequest.cpp stores boundaryPosition as an 8-bit value while parseMultipartPostByte processes the boundary. A remote request...

CVE-2026-54571: Integer Overflow or Wraparound

ESPAsyncWebServer is an asynchronous HTTP and WebSocket server library for ESP32, ESP8266, RP2040 and RP2350. Prior to 3.11.1, the multipart/form-data parser in src/WebRequest.cpp stores boundaryPosition as an 8-bit value while parseMultipartPostByte processes the boundary. A remote request...

CVE-2026-77237

Missing queue-set type validation in xQueueAddToSet in the FreeRTOS-Kernel before 11.3.1 might allow an unprivileged task on MPU-enabled ports with configUSEQUEUESETS=1 to read privileged kernel memory. To remediate this issue, users should upgrade to version 11.3.1 or later...

CVE-2026-77234

Improper input validation in FreeRTOS-Kernel before 11.3.1 might allow an unprivileged task on MPU-enabled ports to execute code in privileged kernel context. To remediate this issue, users should upgrade to version 11.3.1 or later...

CVE-2026-77235

Missing privilege verification in the secure context cleanup handler in FreeRTOS-Kernel before 11.3.1 might allow local users to cause a use-after-free condition in secure-world memory via the SVC handler for secure context deallocation. To remediate this issue, users should upgrade to...

CVE-2026-77236

Missing minimum size validation in secure context allocation in FreeRTOS-Kernel before 11.3.1 might allow local users to corrupt secure-world heap metadata via an out-of-bounds write with an undersized stack size parameter. To remediate this issue, users should upgrade to version 11.3.1 or later...