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{
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              "content": {
                "id": "CVE-2026-14986",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-15T13:42:52.993721Z",
                "version": "2.0.3"
              },
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-15T13:43:00.316Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
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          "programFiles": [
            "drivers/i2c/Kconfig.it51xxx",
            "drivers/i2c/i2c_ite_it51xxx.c"
          ],
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            {
              "name": "target_i2c_isr_fifo"
            }
          ],
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            {
              "lessThan": "4.4.2",
              "status": "affected",
              "version": "4.2.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The ITE it51xxx I2C driver, when operating as an I2C target (slave) in buffer mode (CONFIG_I2C_TARGET + CONFIG_I2C_TARGET_BUFFER_MODE), copies host-supplied write data into the fixed-size data-\u003etarget_in_buffer inside its target FIFO interrupt handler target_i2c_isr_fifo() in drivers/i2c/i2c_ite_it51xxx.c. The copy loop stores to target_in_buffer[i + data-\u003ew_index] and only checks data-\u003ew_index against sizeof(data-\u003etarget_in_buffer) after the write has already completed, so the bounds check cannot prevent the overflow.\n\nThe running index data-\u003ew_index accumulates count bytes on every FIFO-fill interrupt of an ongoing transaction and is reset to zero only on a STOP or timeout condition. An I2C host that streams a single write transaction longer than the buffer (default CONFIG_I2C_TARGET_IT51XXX_MAX_BUF_SIZE = 256 bytes) drives data-\u003ew_index past the end of the buffer, and each subsequent host byte is written out of bounds into the adjacent data-\u003etarget_out_buffer and following static device data.\n\nThe trigger is a malicious or misbehaving I2C master on the same bus (for example a compromised application processor or a rogue device on an exposed I2C bus); no software privilege on the victim is required and the handler runs in the target\u0027s kernel/firmware context. Because both the written values and the overflow length are attacker-controlled, this is an out-of-bounds write that can crash the controller or be shaped toward code execution. The fix adds a pre-write bounds check in target_i2c_fifo_read_to_buf() that aborts and resets the FIFO before any out-of-bounds store."
        }
      ],
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          ]
        }
      ],
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        "dateUpdated": "2026-09-14T22:07:46.392Z",
        "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
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          "name": "Fix commit",
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        {
          "name": "GHSA-jmjj-w736-fw2j",
          "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-jmjj-w736-fw2j"
        }
      ],
      "title": "Out-of-bounds write in it51xxx I2C target FIFO ISR on oversized write transaction",
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        "engine": "cvelib 1.8.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
    "assignerShortName": "zephyr",
    "cveId": "CVE-2026-14986",
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      {
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              "content": {
                "id": "CVE-2026-16148",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "programFiles": [
            "drivers/usb/udc/udc_it82xx2.c"
          ],
          "programRoutines": [
            {
              "name": "it82xx2_enable"
            }
          ],
          "vendor": "zephyrproject",
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              "status": "affected",
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          ]
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The ITE it82xx2 USB device-controller driver initialized its bus-suspend detection work with k_work_init_delayable(\u0026priv-\u003esuspended_work, suspended_handler) inside it82xx2_enable() (the driver\u0027s .enable op) in drivers/usb/udc/udc_it82xx2.c. This work item is scheduled essentially continuously while the USB bus is active: the interrupt handler reschedules it on every SOF frame and suspended_handler() reschedules itself, so its timeout node is normally linked in the kernel timeout list / a workqueue pending queue.\n\nk_work_init_delayable() (kernel/work.c) unconditionally overwrites the entire k_work_delayable structure, including its timeout and queue linkage, with no busy check. Because it82xx2_disable() does not cancel the work, a normal disable-then-enable cycle re-runs api-\u003eenable() (udc_enable() only rejects a redundant enable, not a re-enable after disable) and re-initializes the still-pending work in place, corrupting the kernel timeout/workqueue linked lists and causing a kernel panic.\n\nAn external USB host \u2014 for example a host performing USB DFU detach (dfu-util --detach) or forcing repeated attach/reset/re-enumeration \u2014 drives the udc_disable()/udc_enable() transitions and controls suspend/resume timing, so it can arrange for the suspend work to be pending across a re-enable. This yields an unauthenticated denial of service (kernel panic) reachable across the USB boundary from a removable, physically-connected host, with no confidentiality or integrity impact demonstrated.\n\nThe fix moves the k_work_init_delayable() call into the one-time preinit function so the work is initialized exactly once, eliminating the re-initialization of an in-use item."
        }
      ],
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      ],
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        {
          "descriptions": [
            {
              "cweId": "CWE-666",
              "description": "dos",
              "lang": "en",
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        }
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        "dateUpdated": "2026-09-14T19:33:47.396Z",
        "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
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        {
          "name": "Fix commit",
          "tags": [
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          "url": "https://github.com/zephyrproject-rtos/zephyr/commit/350fd5dfd49e6aca99724fb3f0d4998fe28b4b6c"
        },
        {
          "name": "GHSA-fvp9-j2pq-477x",
          "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fvp9-j2pq-477x"
        }
      ],
      "title": "Kernel panic in the it82xx2 USB device controller driver via re-initialization of a busy delayable work item",
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
    "assignerShortName": "zephyr",
    "cveId": "CVE-2026-16148",
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    "dateUpdated": "2026-09-14T20:06:36.377Z",
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              "content": {
                "id": "CVE-2026-16147",
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                    "Exploitation": "none"
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                  },
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                    "Technical Impact": "total"
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-14T20:04:57.852432Z",
                "version": "2.0.3"
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          "dateUpdated": "2026-09-14T20:05:14.713Z",
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
          "defaultStatus": "unaffected",
          "packageName": "zephyr",
          "product": "zephyr",
          "programFiles": [
            "drivers/usb/udc/udc_it82xx2.c"
          ],
          "programRoutines": [
            {
              "name": "work_handler_out"
            }
          ],
          "vendor": "zephyrproject",
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              "status": "affected",
              "version": "4.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The ITE IT82xx2 USB device-controller driver (drivers/usb/udc/udc_it82xx2.c) mishandles multi-packet OUT transfers on non-control endpoints. In work_handler_out() the active transfer buffer is obtained with udc_buf_peek() (which does not dequeue it); when a full max-packet-size packet arrives but the buffer still has tailroom (the transfer is not yet complete), the pre-fix code both re-arms the endpoint to keep filling that same buf via work_handler_xfer_continue() and simultaneously hands the same, still-being-filled buffer to the upper stack with udc_submit_ep_event().\n\nBecause udc_submit_ep_event() transfers ownership of the buffer to the USB device stack (usbd_event_carrier() appends \u0026buf-\u003enode to uds_ctx-\u003eep_events, after which the class handler processes and net_buf_unref()s it), the driver continues to DMA subsequent host-controlled OUT packets into a buffer the upper stack may already have freed and recycled \u2014 a use-after-free write. In addition, since the buffer was never dequeued, the completing packet runs udc_buf_get() on the same object and submits it a second time, appending \u0026buf-\u003enode to the event slist twice (singly-linked-list corruption) and causing a double net_buf_unref().\n\nThe IT82xx2 is a USB peripheral controller, so the untrusted USB host controls OUT-transfer packetization and can force this path against any non-control OUT endpoint whose queued buffer exceeds one packet \u2014 an ordinary bulk/interrupt pattern. The driver and USB device stack run in kernel context above the external host, giving the host a device-side kernel heap-corruption primitive: a reliable denial of service and, because the written bytes are attacker-controlled, plausible corruption of adjacent net_buf pool memory. The vector is physical (USB attach). The fix defers submission until the buffer is completely filled and lets xfer_work_handler() drive continuation, so each OUT buffer is submitted to the upper stack exactly once."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
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            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "use-after-free",
              "lang": "en",
              "type": "CWE"
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T19:33:46.303Z",
        "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
        "shortName": "zephyr"
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      "references": [
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          "name": "Fix commit",
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            "patch"
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          "url": "https://github.com/zephyrproject-rtos/zephyr/commit/2abc3088a6598579cf322452801a13cb0ec57b0e"
        },
        {
          "name": "GHSA-3q4g-7w6j-8qfp",
          "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-3q4g-7w6j-8qfp"
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      ],
      "title": "it82xx2 USB device controller submits incomplete OUT transfer buffers, causing use-after-free and event-list corruption",
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    "assignerShortName": "zephyr",
    "cveId": "CVE-2026-16147",
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    "adp": [
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          {
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              "content": {
                "id": "CVE-2026-15924",
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                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-14T20:04:00.148079Z",
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          "dateUpdated": "2026-09-14T20:04:19.577Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
          "defaultStatus": "unaffected",
          "packageName": "zephyr",
          "product": "zephyr",
          "programFiles": [
            "subsys/net/lib/sockets/sockets_tls.c"
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          "programRoutines": [
            {
              "name": "tls_session_cache_reset"
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            {
              "name": "tls_session_get"
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            {
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          "vendor": "zephyrproject",
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              "version": "3.1.0",
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        {
          "lang": "en",
          "value": "Zephyr\u0027s TLS socket layer in subsys/net/lib/sockets/sockets_tls.c keeps a single process-global array, client_cache, of cached client sessions that is shared by every TLS socket context. The functions that mutate and read it \u2014 tls_session_save(), tls_session_get(), tls_session_cache_reset(), and the settings restore handler \u2014 allocate, free, and dereference each entry\u0027s heap buffer (entry-\u003esession). Before the fix these accesses were serialized only by the per-socket context mutex ctx-\u003elock (assigned per socket in ctx_set_lock()), which provides no mutual exclusion between different sockets touching the shared cache.\n\nBecause CONFIG_NET_SOCKETS_TLS_MAX_CLIENT_SESSION_COUNT defaults to 1, any two concurrent client sockets contend for the same slot. A thread in tls_session_get() reading entry-\u003esession inside mbedtls_ssl_session_load() can run concurrently with another thread in tls_session_save() that selects the same entry for reuse and executes mbedtls_free(entry-\u003esession) before reallocating \u2014 a use-after-free read, and a double-free when two saves evict the same entry. Both corrupt the mbedTLS heap. The cache is reached on ordinary client paths: at connect time via tls_session_store()/tls_session_restore(), and (on main) whenever a TLS 1.3 session ticket arrives during recv()/poll() via tls_session_store_current().\n\nExploitation requires an application that opts into per-socket client session caching (the TLS_SESSION_CACHE socket option, off by default) and runs concurrent TLS client connections on multiple threads; the timing that opens the window is influenced by the remote peer(s), so a malicious or compromised server can raise session-ticket frequency to widen it. The reliably-demonstrable impact is memory corruption leading to a crash or heap corruption (denial of service). The fix adds a dedicated session_cache_lock mutex taken across every accessor of client_cache, serializing all reads and frees and closing the race."
        }
      ],
      "metrics": [
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          "cvssV3_1": {
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      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-416",
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              "type": "CWE"
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T19:33:45.222Z",
        "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
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          "name": "GHSA-wcgm-pq6x-v2gf",
          "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-wcgm-pq6x-v2gf"
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      ],
      "title": "Use-after-free / double-free from unsynchronized concurrent access to the TLS client session cache in Zephyr sockets",
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                "id": "CVE-2026-15893",
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    ],
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        {
          "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
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          "programFiles": [
            "subsys/net/ip/net_if.c"
          ],
          "programRoutines": [
            {
              "name": "net_if_ipv6_calc_reachable_time"
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            {
              "name": "net_ipv6_nbr_set_reachable_timer"
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          ],
          "vendor": "zephyrproject",
          "versions": [
            {
              "lessThan": "4.4.2",
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              "version": "1.7.0",
              "versionType": "semver"
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      "descriptions": [
        {
          "lang": "en",
          "value": "net_if_ipv6_calc_reachable_time() in subsys/net/ip/net_if.c derives a randomized ND reachable time from ipv6-\u003ebase_reachable_time as min_reachable + sys_rand32_get() % (max_reachable - min_reachable), where min_reachable = base/2 and max_reachable = 3*base/2 using integer division. When base_reachable_time is 1, both min_reachable and the modulus collapse so the function returns 0, and net_if_ipv6_set_reachable_time() stores that 0 into ipv6-\u003ereachable_time.\n\nThe base_reachable_time is attacker-controlled: handle_ra_input() in subsys/net/ip/ipv6_nbr.c accepts the Reachable Time field of an incoming Router Advertisement whenever it is nonzero and \u003c= MAX_REACHABLE_TIME, so a single unauthenticated, link-local RA carrying a Reachable Time of 1 drives the computed reachable time to 0. Router Advertisements are unauthenticated by default and require only adjacency to the target link.\n\nWhen a neighbor is subsequently confirmed reachable, net_ipv6_nbr_set_reachable_timer() reads the value and executes NET_ASSERT(time, \"Zero reachable timeout!\"). On builds with CONFIG_ASSERT enabled this triggers a fatal kernel assertion \u2014 a remote denial of service; on builds without assertions the reachable timer is armed with K_MSEC(0) and fires immediately, forcing reachable neighbors into perpetual re-solicitation (STALE), degrading Neighbor Discovery. The impact is limited to availability; there is no memory-safety, confidentiality, or integrity consequence."
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "value": "The UMP Stream responder library in lib/midi2/ump_stream_responder.c builds reply packets in a 16-byte struct midi_ump (uint32_t data[4]). The builders make_endpoint_info() and make_function_block_info() populate only the first two words (res.data[0] and res.data[1]) and, before this fix, declared their result as an uninitialised local (struct midi_ump res;). The remaining two words (res.data[2], res.data[3]) retain stale stack contents.\n\nEndpoint Info and Function Block Info notifications are UMP Stream messages (UMP_MT_UMP_STREAM), which are 4 words long, so the full 16-byte packet \u2014 including the two uninitialised words \u2014 is transmitted verbatim by cfg-\u003esend(). The responder is driven by attacker-supplied UMP Stream Endpoint-Discovery / Function-Block-Discovery requests via ump_stream_respond(). In the in-tree Network MIDI 2.0 server (subsys/net/lib/midi2/netmidi2.c) these requests arrive as UDP datagrams and, with the default no-authentication endpoint, a remote peer can establish a session and trigger the responses; the same library also serves USB MIDI 2.0 hosts.\n\nEach discovery request causes the device to disclose 8 bytes of its own uninitialised stack memory to the peer, and the request is freely repeatable. This is a confidentiality-only information leak (root cause is use of an uninitialised variable, CWE-457/CWE-908); the leaked words could include residual data or pointer values. There is no memory-corruption, integrity, or availability impact.\n\nThe fix zero-initialises both result structs (struct midi_ump res = {0};), so the trailing words are cleared before transmission. These are the only two responder builders that left trailing words unset (send_string() already zeroes its buffer), so the leak is fully closed."
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          "name": "GHSA-4w5x-w7j4-6xxc",
          "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-4w5x-w7j4-6xxc"
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          "value": "The userspace syscall verifier z_vrfy_mbox_send() in drivers/mbox/mbox_handlers.c validated the nested msg-\u003edata/msg-\u003esize fields by reading them directly out of live userspace memory, and then forwarded the original, still-mutable userspace struct mbox_msg * pointer to z_impl_mbox_send() and the underlying driver. Between the access check and the driver\u0027s use of msg-\u003edata, the validated pointer could be replaced, leaving a time-of-check/time-of-use window.\n\nOn a system built with CONFIG_USERSPACE, any unprivileged userspace thread may invoke the mbox_send() system call. A second thread sharing the caller\u0027s address space can race to overwrite msg-\u003edata with a supervisor (kernel) address after the verifier\u0027s bounds check has passed but before the driver dereferences it. The driver then reads from the attacker-chosen address in supervisor context (for example memcpy(\u0026data32, msg-\u003edata, msg-\u003esize) in the NXP mailbox driver, whose bytes are subsequently emitted to the peer mailbox endpoint).\n\nThe impact is a userspace-to-supervisor access-control bypass: disclosure of kernel memory contents (high confidentiality impact), or, for an invalid/unmapped target address, a faulting kernel read causing denial of service. The fix snapshots the entire struct mbox_msg into a kernel-stack copy with k_usermode_from_copy() and validates and forwards that immutable copy, closing the race."
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          "name": "GHSA-47q2-w832-7w67",
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          "value": "The Infineon Airoc Wi-Fi driver\u0027s transmit callback airoc_mgmt_send() in drivers/wifi/infineon/airoc_wifi.c allocates a net_buf from the fixed airoc_pool for every outbound packet. When whd_network_send_ethernet_data() returns a synchronous failure, the underlying WHD library does not take ownership of the buffer, but the pre-fix driver returned -EIO without releasing it. Each failed transmit therefore permanently leaks one buffer from the pool.\n\nairoc_pool is small and fixed (AIROC_WIFI_TX_PACKET_POOL_COUNT + AIROC_WIFI_RX_PACKET_POOL_COUNT, default 20 buffers) and is shared by WHD\u0027s whd_host_buffer_get callback for both transmit and receive. Once enough send failures have leaked the pool dry, airoc_wifi_host_buffer_get() returns WHD_BUFFER_ALLOC_FAIL for all subsequent allocations, so both transmit and the WHD-driven receive path fail and Wi-Fi connectivity is lost until the device is rebooted.\n\nThe leak occurs only on the transmit error path. A Wi-Fi-adjacent attacker can influence the conditions that cause synchronous send failures (for example by deauthenticating/disassociating the station while the local stack continues to attempt transmits), and ordinary transient failures over the device\u0027s lifetime accumulate toward the same state. Reliable on-demand triggering is of high complexity and the impact is availability-only, but the resulting denial of service is permanent and non-recoverable without a reboot.\n\nThe fix releases the buffer with airoc_wifi_buffer_release() on the failure branch, returning it to the pool. The commit also removes a redundant k_sem_give() in airoc_mgmt_disconnect(); because data-\u003esema_common is a binary semaphore (limit 1) the duplicate give merely saturated at 1 and had no security impact."
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