CVE-2026-12631

The Zephyr kernel validates the kthreadjoin and kthreadabort system calls declared syscall in include/zephyr/kernel.h through threadobjvalidate in kernel/thread.c. Its default switch branch is the access-denied path, taken when kobjectvalidate returns -EPERM the calling user thread was never...

CVE-2026-12631

CVE-2026-12631 is a broken access-control flaw in the Zephyr RTOS kernel affecting the k_thread_join() and k_thread_abort() syscall validation path in kernel/thread.c. The root cause is a logic inversion: K_SYSCALL_VERIFY_MSG treats a non-zero (error) return as success, so the access-denied branc...

CVE-2026-12631 Broken access-control denial in k_thread_join/k_thread_abort syscall validation in Zephyr kernel

The Zephyr kernel validates the kthreadjoin and kthreadabort system calls declared syscall in include/zephyr/kernel.h through threadobjvalidate in kernel/thread.c. Its default switch branch is the access-denied path, taken when kobjectvalidate returns -EPERM the calling user thread was never...

CVE-2026-12631 Broken access-control denial in k_thread_join/k_thread_abort syscall validation in Zephyr kernel

The Zephyr kernel validates the kthreadjoin and kthreadabort system calls declared syscall in include/zephyr/kernel.h through threadobjvalidate in kernel/thread.c. Its default switch branch is the access-denied path, taken when kobjectvalidate returns -EPERM the calling user thread was never...

EUVD-2026-61491

The Zephyr kernel validates the kthreadjoin and kthreadabort system calls declared syscall in include/zephyr/kernel.h through threadobjvalidate in kernel/thread.c. Its default switch branch is the access-denied path, taken when kobjectvalidate returns -EPERM the calling user thread was never...

PT-2026-77335

The Zephyr kernel validates the k thread join and k thread abort system calls declared syscall in include/zephyr/kernel.h through thread obj validate in kernel/thread.c. Its default switch branch is the access-denied path, taken when k object validate returns -EPERM the calling user thread was...

CVE-2026-12232

The CVE concerns the Intel ALH DAI driver in Zephyr. The function dai_alh_get_properties() uses a caller-supplied stream_id without proper bounds checks, indexing a fixed 64-entry alh_handshake_map and potentially reading beyond the intended range. This results in a one-byte-per-call arbitrary-of...

CVE-2026-12232 Out-of-bounds read via unvalidated stream_id in Intel ALH DAI get_properties

The Intel ALH digital-audio-interface driver function daialhgetproperties in drivers/dai/intel/alh/alh.c used a caller-supplied int streamid with no range validation. The value indexes the fixed-size static const uint8t alhhandshakemap64 array and scales a FIFO register address, so an out-of-rang...

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...

EUVD-2026-43698

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-2026-10667 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...

EUVD-2020-2488

Malware in sbrugna...

Heap overflow

Malformed SPI in response for eswifi can corrupt kernel memory. Zephyr versions = 1.14.2, = 2.3.0 contain Heap-based Buffer Overflow CWE-122. For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hx4p-j86p-2mhr...

CVE-2020-10023

The shell subsystem contains a buffer overflow, whereby an adversary with physical access to the device is able to cause a memory corruption, resulting in denial of service or possibly code execution within the Zephyr kernel. See NCC-NCC-019 This issue affects: zephyrproject-rtos zephyr version...

CVE-2020-10023

The shell subsystem contains a buffer overflow, whereby an adversary with physical access to the device is able to cause a memory corruption, resulting in denial of service or possibly code execution within the Zephyr kernel. See NCC-NCC-019 This issue affects: zephyrproject-rtos zephyr version...

Buffer overflow

The shell subsystem contains a buffer overflow, whereby an adversary with physical access to the device is able to cause a memory corruption, resulting in denial of service or possibly code execution within the Zephyr kernel. See NCC-NCC-019 This issue affects: zephyrproject-rtos zephyr version...

CVE-2020-10023

The CVE-2020-10023 entry concerns a buffer overflow in the Zephyr kernel shell subsystem that can cause memory corruption. Affected software is Zephyr Project RTOS (kernel shells), with impact described as potential denial of service or possibly code execution when an adversary has physical acces...