EUVD-2026-97107

The Bluetooth Link Layer Control Procedure LLCP implementation for Connected Isochronous Stream CIS creation retains an RX node ctx-noderef.rx, marked NODERXTYPERETAIN so it can later be reused as the host notification — on the peripheral while awaiting the Host's reply to an LLCISREQ, and on the...

CVE-2026-19738

The Bluetooth Link Layer Control Procedure LLCP implementation for Connected Isochronous Stream CIS creation retains an RX node ctx-noderef.rx, marked NODERXTYPERETAIN so it can later be reused as the host notification — on the peripheral while awaiting the Host's reply to an LLCISREQ, and on the...

CVE-2026-19935 Use-after-free of an L2CAP CoC channel object in the Zephyr Bluetooth host: RX work item is not cancelled on channel teardown

The Bluetooth LE host queues received L2CAP connection-oriented channel CoC data for deferred processing through a struct kwork embedded in the channel object lechan-rxwork, handler l2caprxprocess whenever the channel uses a dynamic PSM 0x0080-0x00FF. Channel teardown in l2capchandestroy in...

CVE-2026-19935 Use-after-free of an L2CAP CoC channel object in the Zephyr Bluetooth host: RX work item is not cancelled on channel teardown

The Bluetooth LE host queues received L2CAP connection-oriented channel CoC data for deferred processing through a struct kwork embedded in the channel object lechan-rxwork, handler l2caprxprocess whenever the channel uses a dynamic PSM 0x0080-0x00FF. Channel teardown in l2capchandestroy in...

CVE-2026-19935

The Zephyr Bluetooth host is vulnerable to a use-after-free flaw in the L2CAP connection-oriented channel (CoC) object. When using a dynamic PSM (0x0080-0x00FF), the system queues received data for deferred processing via a k_work item. However, during channel teardown in l2cap_chan_destroy(), th...

EUVD-2026-97106

The Bluetooth LE host queues received L2CAP connection-oriented channel CoC data for deferred processing through a struct kwork embedded in the channel object lechan-rxwork, handler l2caprxprocess whenever the channel uses a dynamic PSM 0x0080-0x00FF. Channel teardown in l2capchandestroy in...

CVE-2026-19935

The Bluetooth LE host queues received L2CAP connection-oriented channel CoC data for deferred processing through a struct kwork embedded in the channel object lechan-rxwork, handler l2caprxprocess whenever the channel uses a dynamic PSM 0x0080-0x00FF. Channel teardown in l2capchandestroy in...

CVE-2026-19737 NULL pointer dereference in the ESP32 I2S driver when triggering an unsupported direction

i2sesp32triggercheck in drivers/i2s/i2sesp32.c validates the requested direction only for I2SDIRBOTH. The I2SDIRRX and I2SDIRTX branches read devcfg-rx.data-configured / devcfg-tx.data-configured without first checking the stream pointers. The device instantiation macro I2SESP32STREAMINIT sets bo...

CVE-2026-19737

The ESP32 I2S driver in Zephyr RTOS contains a NULL pointer dereference vulnerability in the i2s_esp32_trigger_check() function within drivers/i2s/i2s_esp32.c. The root cause is that the driver fails to validate stream pointers for I2S_DIR_RX and I2S_DIR_TX directions, leading to a load from addr...

EUVD-2026-97105

i2sesp32triggercheck in drivers/i2s/i2sesp32.c validates the requested direction only for I2SDIRBOTH. The I2SDIRRX and I2SDIRTX branches read devcfg-rx.data-configured / devcfg-tx.data-configured without first checking the stream pointers. The device instantiation macro I2SESP32STREAMINIT sets bo...

CVE-2026-19737

i2sesp32triggercheck in drivers/i2s/i2sesp32.c validates the requested direction only for I2SDIRBOTH. The I2SDIRRX and I2SDIRTX branches read devcfg-rx.data-configured / devcfg-tx.data-configured without first checking the stream pointers. The device instantiation macro I2SESP32STREAMINIT sets bo...

CVE-2026-19737 NULL pointer dereference in the ESP32 I2S driver when triggering an unsupported direction

i2sesp32triggercheck in drivers/i2s/i2sesp32.c validates the requested direction only for I2SDIRBOTH. The I2SDIRRX and I2SDIRTX branches read devcfg-rx.data-configured / devcfg-tx.data-configured without first checking the stream pointers. The device instantiation macro I2SESP32STREAMINIT sets bo...

CVE-2026-18418 Out-of-bounds read when the zbus proxy agent IPC backend logs a rejected peer frame's channel name

The zbus proxy agent IPC backend in subsys/zbus/proxyagent/zbusproxyagentipc.c logged the channel name of a rejected inter-domain frame with a plain %s conversion. The frame type struct zbusproxymsg carries a fixed-size channelname array as its last member, and nothing in the transport guarantees...

EUVD-2026-97104

The zbus proxy agent IPC backend in subsys/zbus/proxyagent/zbusproxyagentipc.c logged the channel name of a rejected inter-domain frame with a plain %s conversion. The frame type struct zbusproxymsg carries a fixed-size channelname array as its last member, and nothing in the transport guarantees...

CVE-2026-18418

The zbus proxy agent IPC backend in Zephyr (specifically zbus_proxy_agent_ipc.c) is vulnerable to an out-of-bounds read when logging rejected inter-domain frames. The vulnerability occurs because the channel_name[] array in struct zbus_proxy_msg may lack NUL-termination, and the logging logic use...

CVE-2026-18418 Out-of-bounds read when the zbus proxy agent IPC backend logs a rejected peer frame's channel name

The zbus proxy agent IPC backend in subsys/zbus/proxyagent/zbusproxyagentipc.c logged the channel name of a rejected inter-domain frame with a plain %s conversion. The frame type struct zbusproxymsg carries a fixed-size channelname array as its last member, and nothing in the transport guarantees...

CVE-2026-19736 Out-of-bounds write in the NXP MCUX TRNG entropy driver for non-word-multiple request lengths

The NXP MCUX TRNG entropy driver in drivers/entropy/entropymcuxtrng.c passed the caller's byte count straight to the vendor SDK routine TRNGGetRandomData. On i.MX RT5xx and RT6xx parts the SDK compiles its TRNGSWHEALTHTESTS variant, which always copies whole 32-bit words and draws entropy rounded...

CVE-2026-19736

The NXP MCUX TRNG entropy driver in drivers/entropy/entropy_mcux_trng.c contains an out-of-bounds write vulnerability. The root cause is the driver passing raw byte counts to the TRNG_GetRandomData() SDK routine. On i.MX RT5xx and RT6xx parts, the SDK's health test variant performs word-granular ...

EUVD-2026-97115

The NXP MCUX TRNG entropy driver in drivers/entropy/entropymcuxtrng.c passed the caller's byte count straight to the vendor SDK routine TRNGGetRandomData. On i.MX RT5xx and RT6xx parts the SDK compiles its TRNGSWHEALTHTESTS variant, which always copies whole 32-bit words and draws entropy rounded...

CVE-2026-19736

The NXP MCUX TRNG entropy driver in drivers/entropy/entropymcuxtrng.c passed the caller's byte count straight to the vendor SDK routine TRNGGetRandomData. On i.MX RT5xx and RT6xx parts the SDK compiles its TRNGSWHEALTHTESTS variant, which always copies whole 32-bit words and draws entropy rounded...