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-2026-11811

The UpdateHub over-the-air update client's startcoapclient in subsys/mgmt/updatehub/updatehub.c leaks the CoAP/DTLS socket descriptor on its connection-setup failure paths. The shared error: cleanup gated socket closing on a ret 0 flag, but ret was set to -1 immediately after the socket was...

CVE-2026-11812

CVE-2026-11812 concerns the UpdateHub management subsystem (subsys/mgmt/updatehub/updatehub.c) where access to a single file-scope ctx structure is not serialized. The code allows two concurrent flows to mutate ctx (background autohandler and user-triggered operations), and prepare_fds() can writ...

CVE-2026-11812 UpdateHub: race condition on shared context causes out-of-bounds write and DoS

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-2026-11811

The UpdateHub over-the-air update client's startcoapclient in subsys/mgmt/updatehub/updatehub.c leaks the CoAP/DTLS socket descriptor on its connection-setup failure paths. The shared error: cleanup gated socket closing on a ret 0 flag, but ret was set to -1 immediately after the socket was...

CVE-2026-11811

The CVE-2026-11811 entry documents a socket-file-descriptor leak in the UpdateHub OTA client (start_coap_client) when connection-setup fails. The leak occurs because on failure paths the cleanup gate does not call cleanup_connection(), leaving an open descriptor in the global ctx.sock that is ove...

CVE-2026-11811 Socket file-descriptor leak in UpdateHub OTA client start_coap_client() leading to resource-exhaustion DoS

The UpdateHub over-the-air update client's startcoapclient in subsys/mgmt/updatehub/updatehub.c leaks the CoAP/DTLS socket descriptor on its connection-setup failure paths. The shared error: cleanup gated socket closing on a ret 0 flag, but ret was set to -1 immediately after the socket was...

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

The UpdateHub OTA client in subsys/mgmt/updatehub/updatehub.c contains an out-of-bounds / uninitialized-memory read in zimplupdatehubprobe. The probe response from the UpdateHub server is copied into a heap buffer metadata that is correctly NUL-terminated, but a second buffer metadatacopy is...

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-2026-11809 UpdateHub probe: uninitialized-heap out-of-bounds read of network-supplied metadata

The UpdateHub OTA client in subsys/mgmt/updatehub/updatehub.c contains an out-of-bounds / uninitialized-memory read in zimplupdatehubprobe. The probe response from the UpdateHub server is copied into a heap buffer metadata that is correctly NUL-terminated, but a second buffer metadatacopy is...

CVE-2026-11810

CVE-2026-11810 affects Zephyr’s UpdateHub firmware-update agent. The probe handler z_impl_updatehub_probe() parses CoAP-provided JSON metadata into a two-level nested array; it only validates the outer array length and then dereferences objects[1].objects[0].objects.sha256sum with strlen() withou...

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...

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...

PT-2026-69998

Name of the Vulnerable Software and Affected Versions UpdateHub affected versions not specified Description The UpdateHub management subsystem contains a race condition in the subsys/mgmt/updatehub/updatehub.c file. The subsystem uses a single file-scope ctx structure to manage update operations,...

PT-2026-69997

Name of the Vulnerable Software and Affected Versions UpdateHub affected versions not specified Description The over-the-air update client contains a resource leak in the start coap client function within subsys/mgmt/updatehub/updatehub.c. When a connection to the UpdateHub server fails during...

EUVD-2020-2487

Malware in sbrugna...

EUVD-2020-2524

Malware in sbrugna...

Zephyr Trust Management Issues Vulnerabilities

Zephyr is an open source, small, scalable real-time operating system from the Linux Foundation. A trust management issue vulnerability exists in the UpdateHub module in Zephyr 2.1.0 and later fixed in version 2.2.0, which stems from the program disabling DTLS peer checking. An attacker could use...

Zephyr Code Execution Vulnerability

Zephyr is an open source, small, scalable real-time operating system from the Linux Foundation. A security vulnerability exists in Zephyr versions 2.1.0 and later and 2.2.0 and later. An attacker can exploit this vulnerability by sending a malformed JSON file to the UpdateHub server to cause a...