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

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-...

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-2026-70059

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...

CVE-2026-8718

tlsoptdtlspeerconnectionidvalueget in subsys/net/lib/sockets/socketstls.c, which handles getsockoptSOLTLS, TLSDTLSPEERCIDVALUE, passed the caller-supplied optval directly to mbedtlssslgetpeercid without verifying the buffer was at least MBEDTLSSSLCIDOUTLENMAX default 32 bytes. mbedtlssslgetpeerci...

CVE-2026-11812

The UpdateHub management subsystem subsys/mgmt/updatehub/updatehub.c drives every update operation through a single file-scope ctx structure that holds the CoAP block context, payload buffer, status code, socket, and a one-element poll-fd array fds1. Access to ctx was not serialized, and preparef...

CVE-2026-8718

tlsoptdtlspeerconnectionidvalueget in subsys/net/lib/sockets/socketstls.c, which handles getsockoptSOLTLS, TLSDTLSPEERCIDVALUE, passed the caller-supplied optval directly to mbedtlssslgetpeercid without verifying the buffer was at least MBEDTLSSSLCIDOUTLENMAX default 32 bytes. mbedtlssslgetpeerci...

CVE-2026-8718 Out-of-bounds write in DTLS peer Connection ID getsockopt (`TLS_DTLS_PEER_CID_VALUE`) in Zephyr net sockets/TLS

tlsoptdtlspeerconnectionidvalueget in subsys/net/lib/sockets/socketstls.c, which handles getsockoptSOLTLS, TLSDTLSPEERCIDVALUE, passed the caller-supplied optval directly to mbedtlssslgetpeercid without verifying the buffer was at least MBEDTLSSSLCIDOUTLENMAX default 32 bytes. mbedtlssslgetpeerci...

CVE-2026-8718 Out-of-bounds write in DTLS peer Connection ID getsockopt (`TLS_DTLS_PEER_CID_VALUE`) in Zephyr net sockets/TLS

tlsoptdtlspeerconnectionidvalueget in subsys/net/lib/sockets/socketstls.c, which handles getsockoptSOLTLS, TLSDTLSPEERCIDVALUE, passed the caller-supplied optval directly to mbedtlssslgetpeercid without verifying the buffer was at least MBEDTLSSSLCIDOUTLENMAX default 32 bytes. mbedtlssslgetpeerci...

CVE-2026-11810

The UpdateHub firmware-update agent's probe handler zimplupdatehubprobe in subsys/mgmt/updatehub/updatehub.c parses the JSON metadata returned by the update server into a fixed two-level nested-array struct. After parsing it validates only the outer array length objectslen != 2 and then...

CVE-2026-11809

CVE-2026-11809 (Zephyr UpdateHub OTA client) : The UpdateHub probe in subsys/mgmt/updatehub/updatehub.c uses a second heap buffer (metadata_copy) via memcpy(metadata_copy, metadata, strlen(metadata)) without zeroing. This omits the terminating NUL, so a subsequent json_obj_parse(metadata_copy, st...

CVE-2026-11810 NULL-pointer dereference in UpdateHub OTA agent on empty inner metadata array (remote DoS)

The UpdateHub firmware-update agent's probe handler zimplupdatehubprobe in subsys/mgmt/updatehub/updatehub.c parses the JSON metadata returned by the update server into a fixed two-level nested-array struct. After parsing it validates only the outer array length objectslen != 2 and then...

Zephyr 安全漏洞

Zephyr is an open-source, scalable real-time operating system RTOS developed by Zephyr. There is a security vulnerability in Zephyr, which stems from memory corruption in the WebSocket upgrade path of the HTTP server. This vulnerability could allow remote, unauthenticated attackers to trigger...

Zephyr 安全漏洞

Zephyr is an open-source, scalable real-time operating system RTOS developed by Zephyr. There is a security vulnerability in Zephyr, which stems from the use of NETASSERT for verifying buffer length only in the zcansendtoctx function. Disabling this feature in production builds may lead to...

Exploit for Use of Externally-Controlled Format String in Ghs Integrity_Rtos

🛡️ CVE-2019-7711: Green Hills INTEGRITY RTOS Information Lea...

CVE-2026-7425

Insufficient option length validation in the IPv6 Router Advertisement parser in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to cause a denial of service device crash by sending a crafted Router Advertisement with a truncated PREFIXINFORMATION option that is smalle...

CVE-2026-0648

The vulnerability stems from an incorrect error-checking logic in the CreateCounter function in threadx/utility/rtoscompatibilitylayers/OSEK/txosek.c when handling the return value of osekgetcounter. Specifically, the current code checks if cntrid equals 0u to determine failure, but...

CVE-2021-27502

Texas Instruments TI-RTOS, when configured to use HeapMem heapdefault, malloc returns a valid pointer to a small buffer on extremely large values, which can trigger an integer overflow vulnerability in 'HeapMemallocUnprotected' and result in code execution...