CVE-2026-14697 IPv6 Neighbor Solicitation packet leak causes TX pool exhaustion denial of service

netipv6sendns in subsys/net/ip/ipv6nbr.c allocates a transmit netpkt for a Neighbor Solicitation. When it is called with a data packet pending on an unresolved neighbor and that neighbor's pendingqueue is already non-empty an NS is already outstanding, the function appends the data packet and...

CVE-2026-14696

When Ethernet bridging is enabled CONFIGNETETHERNETBRIDGE, ethbridgeinputprocess in subsys/net/l2/ethernet/bridge/bridgeinput.c decides how each frame received on a bridge member interface is handled. For frames that must also be delivered to the local stack, the code called ethbridgehandlelocall...

CVE-2026-14696

Zephyr RTOS Ethernet bridging contains an RX packet leak in eth_bridge_input_process() (subsys/net/l2/ethernet/bridge/bridge_input.c). When Ethernet bridging is enabled (CONFIG_NET_ETHERNET_BRIDGE), frames delivered to the local stack via eth_bridge_handle_locally() return NET_OK without actually...

CVE-2026-14696 Ethernet bridge RX packet leak enables denial of service via RX buffer-pool exhaustion

When Ethernet bridging is enabled CONFIGNETETHERNETBRIDGE, ethbridgeinputprocess in subsys/net/l2/ethernet/bridge/bridgeinput.c decides how each frame received on a bridge member interface is handled. For frames that must also be delivered to the local stack, the code called ethbridgehandlelocall...

EUVD-2026-68728

When Ethernet bridging is enabled CONFIGNETETHERNETBRIDGE, ethbridgeinputprocess in subsys/net/l2/ethernet/bridge/bridgeinput.c decides how each frame received on a bridge member interface is handled. For frames that must also be delivered to the local stack, the code called ethbridgehandlelocall...

CVE-2026-14696 Ethernet bridge RX packet leak enables denial of service via RX buffer-pool exhaustion

When Ethernet bridging is enabled CONFIGNETETHERNETBRIDGE, ethbridgeinputprocess in subsys/net/l2/ethernet/bridge/bridgeinput.c decides how each frame received on a bridge member interface is handled. For frames that must also be delivered to the local stack, the code called ethbridgehandlelocall...

CVE-2026-14368

CVE-2026-14368 is an off-by-one out-of-bounds write in the Zephyr RTOS LwM2M JSON content formatter. The get_string() function in subsys/net/lib/lwm2m/lwm2m_rw_json.c uses a boundary check of string_length > buflen instead of >=, allowing a parsed JSON string whose length exactly equals the...

CVE-2026-14367 I3C IBI work-node free-list data race between ISR and workqueue thread

The I3C IBI subsystem in drivers/i3c/i3cibiworkq.c hands out statically-allocated work nodes through a free-list i3cibiworknodesfree implemented as a plain sysslistt, which provides no synchronization. The allocation helpers i3cibiworkenqueue, i3cibiworkenqueuetargetirq, i3cibiworkenqueuehotjoin,...

EUVD-2026-68718

The I3C IBI subsystem in drivers/i3c/i3cibiworkq.c hands out statically-allocated work nodes through a free-list i3cibiworknodesfree implemented as a plain sysslistt, which provides no synchronization. The allocation helpers i3cibiworkenqueue, i3cibiworkenqueuetargetirq, i3cibiworkenqueuehotjoin,...

CVE-2026-14366 SiWx91x WiFi driver double-unref / use-after-free of caller-owned TX net_pkt

The Silicon Labs SiWx917 WiFi driver's transmit callback siwx91xsend in drivers/wifi/siwx91x/siwx91xwifi.c frees a network packet it does not own. In the Zephyr TX path the netpkt is owned by the L2/networking stack; the driver only borrows it to copy the frame bytes into a local netbuf. Before t...

CVE-2026-14366 SiWx91x WiFi driver double-unref / use-after-free of caller-owned TX net_pkt

The Silicon Labs SiWx917 WiFi driver's transmit callback siwx91xsend in drivers/wifi/siwx91x/siwx91xwifi.c frees a network packet it does not own. In the Zephyr TX path the netpkt is owned by the L2/networking stack; the driver only borrows it to copy the frame bytes into a local netbuf. Before t...

PT-2026-83952

The I3C IBI subsystem in drivers/i3c/i3c ibi workq.c hands out statically-allocated work nodes through a free-list i3c ibi work nodes free implemented as a plain sys slist t, which provides no synchronization. The allocation helpers i3c ibi work enqueue, i3c ibi work enqueue target irq, i3c ibi...

PT-2026-83959

When Ethernet bridging is enabled CONFIG NET ETHERNET BRIDGE, eth bridge input process in subsys/net/l2/ethernet/bridge/bridge input.c decides how each frame received on a bridge member interface is handled. For frames that must also be delivered to the local stack, the code called eth bridge...

PT-2026-83953

The LwM2M JSON content formatter's get string in subsys/net/lib/lwm2m/lwm2m rw json.c copies a parsed JSON string into a caller-supplied buffer and NUL-terminates it. The length guard used if string length buflen, which accepts a string whose length is exactly buflen. After memcpy fills the whole...

PT-2026-83972

net ipv6 send ns in subsys/net/ip/ipv6 nbr.c allocates a transmit net pkt for a Neighbor Solicitation. When it is called with a data packet pending on an unresolved neighbor and that neighbor's pending queue is already non-empty an NS is already outstanding, the function appends the data packet a...

CVE-2026-13481 Out-of-bounds read in PTP management TLV TIME parsing in Zephyr net PTP

The IEEE 1588 PTP management-message parser in subsys/net/lib/ptp/tlv.c mishandles the PTPMGMTTIME management id. In tlvmgmtpostrecv, the PTPMGMTTIME case casts mgmttlv-data to a 10-byte struct ptptimestamp and reads it then byte-swaps and writes it back without first checking that the TLV data...

CVE-2026-13480 Out-of-bounds read in LoRaWAN fragmented data block transport (FUOTA) downlink handler

The LoRaWAN TS004 Fragmented Data Block Transport handler fragtransportpackagecallback in subsys/lorawan/services/fragtransport.c parses downlink command bytes without validating that enough payload bytes remain before each access. The loop's only bound is rxpos fragsize, capped at...

CVE-2026-13217

The OCPP 1.6 client in subsys/net/lib/ocpp/ocpp.c reconstructs a session handle and PDU id from the uid field of a CALLRESULT message. In ocppprocessservermsg the code calls atoistrtokruid, "-", &tmp without checking the strtokr return value. When the server-supplied uid is empty or contains no -...

CVE-2026-13216

The virtio PCI driver drivers/virtio/virtiopci.c parses a device's PCI capability list during driver initialization. In virtiopcireadcap the device-supplied capability length byte caplen read from PCI config space via pcieconfread was only checked with asserttmp.caplen == capstructsize. That asse...

CVE-2026-13478 Out-of-bounds read in Zephyr ext2 block-bitmap validation from a crafted s_blocks_count

The Zephyr ext2 filesystem driver validates the on-disk block bitmap in ext2initfs subsys/fs/ext2/ext2impl.c by passing fsblocks = sblockscount - sfirstdatablock to ext2bitmapcountset. That helper subsys/fs/ext2/ext2bitmap.c treats its argument as a number of bits and reads one bitmap byte per...