CVE-2026-12051 NULL pointer dereference in USB DFU device_next download handler (handle_download)

The USB DFU class implementation in Zephyr's new experimental devicenext USB device stack contains a NULL pointer dereference in handledownload subsys/usb/devicenext/class/usbddfu.c. The handler computes MINsetup-wLength, buf-len and passes buf-data to the image write callback without checking th...

EUVD-2026-55939

The USB DFU class implementation in Zephyr's new experimental devicenext USB device stack contains a NULL pointer dereference in handledownload subsys/usb/devicenext/class/usbddfu.c. The handler computes MINsetup-wLength, buf-len and passes buf-data to the image write callback without checking th...

CVE-2026-12051 NULL pointer dereference in USB DFU device_next download handler (handle_download)

The USB DFU class implementation in Zephyr's new experimental devicenext USB device stack contains a NULL pointer dereference in handledownload subsys/usb/devicenext/class/usbddfu.c. The handler computes MINsetup-wLength, buf-len and passes buf-data to the image write callback without checking th...

CVE-2026-12051 NULL pointer dereference in USB DFU device_next download handler (handle_download)

The USB DFU class implementation in Zephyr's new experimental devicenext USB device stack contains a NULL pointer dereference in handledownload subsys/usb/devicenext/class/usbddfu.c. The handler computes MINsetup-wLength, buf-len and passes buf-data to the image write callback without checking th...

CVE-2026-12051

The USB DFU class implementation in Zephyr's new experimental devicenext USB device stack contains a NULL pointer dereference in handledownload subsys/usb/devicenext/class/usbddfu.c. The handler computes MINsetup-wLength, buf-len and passes buf-data to the image write callback without checking th...

CVE-2026-11893

The Bluetooth HCI driver for Bouffalo Lab on-chip BLE controllers BL60x/BL70x/BL61x, btbflbsend in drivers/bluetooth/hci/hcibflb.c, violates the bthcidriverapi.send buffer-ownership contract. That contract documented at include/zephyr/drivers/bluetooth.h requires the buffer reference to be consum...

CVE-2026-11985

On the Zephyr ARM port, enabling the hardware FPU CONFIGFPU forces the "Floating point ABI" choice, which defaults to CONFIGFPHARDABI. Both FPHARDABI and FPSOFTABI permit the compiler to emit hardware FP instructions in any function, even code that never uses floating-point types. However, the...

CVE-2026-11985

On the Zephyr ARM port, enabling the hardware FPU CONFIGFPU forces the "Floating point ABI" choice, which defaults to CONFIGFPHARDABI. Both FPHARDABI and FPSOFTABI permit the compiler to emit hardware FP instructions in any function, even code that never uses floating-point types. However, the...

EUVD-2026-55936

On the Zephyr ARM port, enabling the hardware FPU CONFIGFPU forces the "Floating point ABI" choice, which defaults to CONFIGFPHARDABI. Both FPHARDABI and FPSOFTABI permit the compiler to emit hardware FP instructions in any function, even code that never uses floating-point types. However, the...

CVE-2026-11985 Cross-thread FPU register leak on ARM when FPU enabled without register sharing

On the Zephyr ARM port, enabling the hardware FPU CONFIGFPU forces the "Floating point ABI" choice, which defaults to CONFIGFPHARDABI. Both FPHARDABI and FPSOFTABI permit the compiler to emit hardware FP instructions in any function, even code that never uses floating-point types. However, the...

CVE-2026-11985 Cross-thread FPU register leak on ARM when FPU enabled without register sharing

On the Zephyr ARM port, enabling the hardware FPU CONFIGFPU forces the "Floating point ABI" choice, which defaults to CONFIGFPHARDABI. Both FPHARDABI and FPSOFTABI permit the compiler to emit hardware FP instructions in any function, even code that never uses floating-point types. However, the...

CVE-2026-11985 Cross-thread FPU register leak on ARM when FPU enabled without register sharing

On the Zephyr ARM port, enabling the hardware FPU CONFIGFPU forces the "Floating point ABI" choice, which defaults to CONFIGFPHARDABI. Both FPHARDABI and FPSOFTABI permit the compiler to emit hardware FP instructions in any function, even code that never uses floating-point types. However, the...

CVE-2026-11985

CVE-2026-11985 describes a cross-thread information leak on the Zephyr ARM port when the hardware FPU is enabled (CONFIG_FPU) but FPU register sharing is disabled. With default FP_ABI (FP_HARDABI) or FP_SOFTABI, FP instructions can be emitted in any function, while callee-saved FP registers (s16-...

CVE-2026-11893

The CVE concerns Bouffalo Lab on‑chip BLE controllers (BL60x/BL70x/BL61x) with Zephyr’s Bluetooth HCI, where bt_bflb_send() in hci_bflb.c violates the bt_hci_driver_api.send() buffer-ownership contract. On error, the driver unrefs the buffer, but the host TX path (send_buf() in subsys/bluetooth/h...

EUVD-2026-55935

The Bluetooth HCI driver for Bouffalo Lab on-chip BLE controllers BL60x/BL70x/BL61x, btbflbsend in drivers/bluetooth/hci/hcibflb.c, violates the bthcidriverapi.send buffer-ownership contract. That contract documented at include/zephyr/drivers/bluetooth.h requires the buffer reference to be consum...

CVE-2026-11893

The Bluetooth HCI driver for Bouffalo Lab on-chip BLE controllers BL60x/BL70x/BL61x, btbflbsend in drivers/bluetooth/hci/hcibflb.c, violates the bthcidriverapi.send buffer-ownership contract. That contract documented at include/zephyr/drivers/bluetooth.h requires the buffer reference to be consum...

PT-2026-70063

Name of the Vulnerable Software and Affected Versions Zephyr affected versions not specified Description An out-of-bounds write exists in the USB device-side CDC NCM class control-to-host handler usbd cdc ncm cth within the subsys/usb/device next/class/usbd cdc ncm.c file. The issue occurs when t...

PT-2026-70058

Name of the Vulnerable Software and Affected Versions Bouffalo Lab on-chip BLE controllers BL60x/BL70x/BL61x affected versions not specified Description The Bluetooth HCI driver for Bouffalo Lab on-chip BLE controllers contains an issue where the bt bflb send function in drivers/bluetooth/hci/hci...

PT-2026-70059

Name of the Vulnerable Software and Affected Versions Zephyr ARM port affected versions not specified Description On the ARM port, enabling the hardware FPU via CONFIG FPU forces a Floating point ABI choice, defaulting to CONFIG FP HARDABI. Both FP HARDABI and FP SOFTABI allow the compiler to emi...

PT-2026-70061

Name of the Vulnerable Software and Affected Versions Zephyr affected versions not specified Description The USB DFU class implementation in the experimental device next USB device stack contains a NULL pointer dereference within the handle download function. This occurs when the handler processe...