CVE-2026-10678

The MCTP-over-I2C+GPIO target binding in Zephyr subsys/pmci/mctp/mctpi2cgpiotarget.c processes pseudo-register writes from an I2C bus master byte-by-byte in mctpi2cgpiotargetwritereceived without validating the order or the receive buffer. In the affected versions the MCTPI2CGPIORXMSGADDR data...

CVE-2026-10675

In Zephyr's Bluetooth Mesh PB-ADV provisioning bearer subsys/bluetooth/mesh/pbadv.c, provmsgrecv rescheduled the provisioning protocol watchdog timer unconditionally at the top of the function, before the FCS check and before the ADVLINKINVALID check. Once a provisioning attempt fails, provfailed...

CVE-2026-10680

CVE-2026-10680 affects Zephyr Project’s Classic BR/EDR L2CAP signaling: l2cap_br_conf_req() and l2cap_br_conf_rsp() validate the per-command length against the whole PDU length (buf->len) instead of the per-command len, allowing underflow of opt_len and an out-of-bounds read/write during confi...

CVE-2026-10680 Out-of-bounds access in Zephyr BR/EDR L2CAP configuration request handling via `uint16_t` length underflow

The Classic BR/EDR L2CAP signaling handlers l2capbrconfreq and l2capbrconfrsp in subsys/bluetooth/host/classic/l2capbr.c validated the minimum command size against buf-len the bytes remaining in the whole received PDU instead of len the per-command data length from the L2CAP signaling header...

EUVD-2026-46447

The MCTP-over-I2C+GPIO target binding in Zephyr subsys/pmci/mctp/mctpi2cgpiotarget.c processes pseudo-register writes from an I2C bus master byte-by-byte in mctpi2cgpiotargetwritereceived without validating the order or the receive buffer. In the affected versions the MCTPI2CGPIORXMSGADDR data...

CVE-2026-10678

The CVE-2026-10678 issue affects Zephyr’s MCTP over I2C+GPIO target binding (mctp_i2c_gpio_target.c). It processes I2C bus master writes byte-by-byte without validating the receive buffer, dereferencing b->rx_pkt to write data for data registers (MCTP_I2C_GPIO_RX_MSG_ADDR) before the receive b...

CVE-2026-10674 DoS (hard fault) in NXP LPUART driver: unsupported runtime UART config leaves clocks disabled

The NXP LPUART serial driver drivers/serial/uartmcuxlpuart.c, when CONFIGUARTUSERUNTIMECONFIGURE is enabled, called LPUARTDeinit at the start of mcuxlpuartconfigure, which disables the LPUART peripheral clocks. The requested configuration is validated only afterwards in mcuxlpuartconfigurebasic,...

PT-2026-62125

The MCTP-over-I2C+GPIO target binding in Zephyr subsys/pmci/mctp/mctp i2c gpio target.c processes pseudo-register writes from an I2C bus master byte-by-byte in mctp i2c gpio target write received without validating the order or the receive buffer. In the affected versions the MCTP I2C GPIO RX MSG...

PT-2026-62126

The DesignWare SPI driver drivers/spi/spi dw.c computed the SPI BAUDR clock divider as info-clock frequency / config-frequency without validating config-frequency. spi transceive is a Zephyr syscall and its verify handler drivers/spi/spi handlers.c copies the caller-supplied spi config from...

CVE-2026-10673

The Zephyr ADIN2111/ADIN1110 10BASE-T1S/T1L Ethernet driver drivers/ethernet/ethadin2111.c reassembles received Ethernet frames in OPEN Alliance OA SPI mode by copying device-supplied 64-byte data chunks into a fixed static buffer ctx-buf of size CONFIGETHADIN2111BUFFERSIZE default 1524 bytes. In...

EUVD-2026-44746

The Zephyr ADIN2111/ADIN1110 10BASE-T1S/T1L Ethernet driver drivers/ethernet/ethadin2111.c reassembles received Ethernet frames in OPEN Alliance OA SPI mode by copying device-supplied 64-byte data chunks into a fixed static buffer ctx-buf of size CONFIGETHADIN2111BUFFERSIZE default 1524 bytes. In...

CVE-2026-10671 User thread can re-initialize an in-use `k_pipe`, corrupting kernel wait queues (`CONFIG_USERSPACE`)

In Zephyr's kernel pipe implementation, the userspace syscall verifier zvrfykpipeinit in kernel/pipe.c used KSYSCALLOBJ which requires the kernel object to already be initialized instead of KSYSCALLOBJNEVERINIT which rejects an already-initialized object. As a result, on CONFIGUSERSPACE builds an...

CVE-2026-10665

In Zephyr's WireGuard subsystem subsys/net/lib/wireguard, wgprocessdatamessage in wgcrypto.c linearizes an inbound transport-data payload into a fixed pool buffer of CONFIGWIREGUARDBUFLEN bytes before decryption. The call netbuflinearizebuf-data, datalen, pkt-buffer, ..., datalen passed the...

CVE-2026-10666

parseipv4 in subsys/net/ip/utils.c reached via netipaddrparse for strings of the form "a.b.c.d:port" copies the port substring into a fixed 17-byte stack buffer char ipaddrNETIPV4ADDRLEN + 1 using a length of strlen - end - 1, where strlen is the full, unbounded input length and end is only the...

CVE-2026-10667

Zephyr's dynamic kernel-object tracking kernel/userspace/userspace.c, formerly kernel/userspace.c maintains a doubly-linked list objlist of dynamically allocated kernel objects. Iteration over this list in kobjectwordlistforeach was performed under listslock using the SAFE iterator which caches t...

CVE-2026-10663

In Zephyr's experimental USB host stack CONFIGUSBHOSTSTACK, usbhdevicedisconnect subsys/usb/host/usbhdevice.c freed the root usbdevice slab object without clearing the cached pointer ctx-root. The bus removal handler devremovedhandler subsys/usb/host/usbhcore.c decides what to tear down solely fr...

CVE-2026-10667 SMP use-after-free in Zephyr `CONFIG_USERSPACE` dynamic kernel-object tracking, reachable from unprivileged user threads

Zephyr's dynamic kernel-object tracking kernel/userspace/userspace.c, formerly kernel/userspace.c maintains a doubly-linked list objlist of dynamically allocated kernel objects. Iteration over this list in kobjectwordlistforeach was performed under listslock using the SAFE iterator which caches t...

CVE-2026-10666 Stack buffer overflow in `net_ipaddr_parse()` IPv4 address-with-port parsing in `subsys/net/ip/utils.c`

parseipv4 in subsys/net/ip/utils.c reached via netipaddrparse for strings of the form "a.b.c.d:port" copies the port substring into a fixed 17-byte stack buffer char ipaddrNETIPV4ADDRLEN + 1 using a length of strlen - end - 1, where strlen is the full, unbounded input length and end is only the...

CVE-2026-10667 SMP use-after-free in Zephyr `CONFIG_USERSPACE` dynamic kernel-object tracking, reachable from unprivileged user threads

Zephyr's dynamic kernel-object tracking kernel/userspace/userspace.c, formerly kernel/userspace.c maintains a doubly-linked list objlist of dynamically allocated kernel objects. Iteration over this list in kobjectwordlistforeach was performed under listslock using the SAFE iterator which caches t...

CVE-2026-10666 Stack buffer overflow in `net_ipaddr_parse()` IPv4 address-with-port parsing in `subsys/net/ip/utils.c`

parseipv4 in subsys/net/ip/utils.c reached via netipaddrparse for strings of the form "a.b.c.d:port" copies the port substring into a fixed 17-byte stack buffer char ipaddrNETIPV4ADDRLEN + 1 using a length of strlen - end - 1, where strlen is the full, unbounded input length and end is only the...