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{
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    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
          "defaultStatus": "unaffected",
          "packageName": "zephyr",
          "product": "zephyr",
          "vendor": "zephyrproject",
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              "status": "affected",
              "version": "4.3.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Zephyr Bluetooth LE Audio Basic Audio Profile (BAP) unicast client mishandles peer-supplied ASE state notifications. In unicast_client_ep_qos_state() (subsys/bluetooth/audio/bap_unicast_client.c), the handler writes attacker-controlled QoS fields (interval, framing, phy, sdu, rtn, latency, pd) through the stream-qos pointer with only a stream != NULL guard. stream-qos is NULL for any stream that has been codec-configured via bt_bap_stream_config() but not yet added to a unicast group (it is set only by unicast_group_add_stream()). A malicious or buggy remote ASCS server, to which the local device is connected as a BAP unicast client, can send a GATT notification announcing the ASE has entered the QoS Configured state while the local endpoint is still in the Codec Configured state \u2014 a transition the dispatcher explicitly permits \u2014 during that window, causing a write through a NULL pointer and a crash (denial of service). The data written is itself remote-controlled. The defect shipped in v4.3.0 and v4.4.0 (and earlier). The fix re-points all BAP QoS storage to the always-valid embedded ep-qos struct, eliminating the NULL dereference."
        }
      ],
      "metrics": [
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            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
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      ],
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        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "memory-safety",
              "lang": "en",
              "type": "CWE"
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          ]
        }
      ],
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        "dateUpdated": "2026-06-28T04:28:22.888Z",
        "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
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        {
          "name": "GHSA-22q8-m94g-2pwh",
          "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-22q8-m94g-2pwh"
        }
      ],
      "title": "Remotely triggerable NULL-pointer dereference in Bluetooth LE Audio BAP unicast client QoS-state handling",
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    "assignerShortName": "zephyr",
    "cveId": "CVE-2026-10593",
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    "dateReserved": "2026-06-01T21:19:25.050Z",
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          "product": "zephyr",
          "vendor": "zephyrproject",
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              "status": "affected",
              "version": "4.0.0",
              "versionType": "semver"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Zephyr\u0027s BSD-sockets getaddrinfo() implementation (subsys/net/lib/sockets/getaddrinfo.c) passes a pointer to a stack-allocated state object (struct getaddrinfo_state ai_state) as the user_data of an asynchronous DNS resolver query. The socket layer waits on a semaphore with a timeout deliberately set slightly longer than the resolver\u0027s own per-query timeout. When that semaphore wait nonetheless times out (-EAGAIN) - which can occur when the resolver\u0027s timeout work is delayed by workqueue contention, or in the documented multi-retry configuration where CONFIG_NET_SOCKETS_DNS_TIMEOUT exceeds CONFIG_NET_SOCKETS_DNS_BACKOFF_INTERVAL - the pre-fix code retries the query (goto again) without cancelling the previous one and without resetting the semaphore. The previous query slot remains active in the resolver with its callback and the stack pointer as user_data, and ai_state-dns_id is overwritten so the stale query can no longer be cancelled. A subsequent DNS response delivered over UDP and matched by its 16-bit transaction id (in dispatcher_cb()/dns_read()), or the resolver\u0027s own delayed query-timeout work, then invokes dns_resolve_cb() against the now out-of-scope stack frame, writing through the stale pointer (state-status, state-idx, state-ai_arr[], and k_sem_give()). Because the triggering response is network-delivered and its 16-bit id is spoofable/replayable by an on- or off-path attacker, this is a network-influenceable use-after-return that can corrupt reused stack memory, leading to crashes/denial of service or memory corruption. The fix cancels the timed-out query by name and type before retrying and resets the local semaphore, eliminating the stale callback path. Affected: Zephyr v4.0.0 through v4.4.0."
        }
      ],
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            "baseSeverity": "HIGH",
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      ],
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          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "use-after-free",
              "lang": "en",
              "type": "CWE"
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          ]
        }
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        "dateUpdated": "2026-06-28T04:04:11.008Z",
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          "name": "GHSA-h752-vhmf-29w6",
          "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-h752-vhmf-29w6"
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      "title": "Use-after-return in `zsock_getaddrinfo()` when a timed-out DNS query is retried without cancellation",
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              "lessThan": "4.5.0",
              "status": "affected",
              "version": "4.4.0",
              "versionType": "semver"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Microchip SERCOM-G1 UART driver (drivers/serial/uart_mchp_sercom_g1.c), used by the PIC32CM-JH SoC family, contains an out-of-bounds write in its asynchronous (DMA) receive path. When uart_rx_enable() is invoked with a one-byte receive buffer (len == 1) and CONFIG_UART_MCHP_ASYNC is enabled, the RX-complete ISR starts a single-beat DMA transfer while a received byte is already pending in the SERCOM DATA register. On this SoC the peripheral-triggered DMA start sequencing then writes one byte past the end of the caller-supplied buffer (CWE-787). The overflowed byte\u0027s value is the UART RX data supplied by the connected serial peer (adjacent attacker), while its size and location are fixed at one byte immediately after the buffer. Exploitation requires the async UART config (not enabled by default on the in-tree PIC32CM-JH boards) and a consumer that enables RX with a one-byte buffer; impact is limited single-byte memory corruption adjacent to the RX buffer (possible crash / denial of service). The defect shipped in v4.4.0. The fix reads the first byte with the CPU and, for one-byte buffers, performs no DMA at all; for larger buffers it sizes the DMA for the remaining len-1 bytes."
        }
      ],
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            "baseScore": 4.2,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
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      "problemTypes": [
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              "cweId": "CWE-787",
              "description": "bounds",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-06-28T04:02:47.441Z",
        "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
        "shortName": "zephyr"
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          "url": "https://github.com/zephyrproject-rtos/zephyr/commit/5251d2bc0070be801769fb7ce7b9066fef5d9f81"
        },
        {
          "name": "GHSA-xv2x-56j7-6wc3",
          "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-xv2x-56j7-6wc3"
        }
      ],
      "title": "Out-of-bounds write in Microchip SERCOM-G1 (PIC32CM-JH) async UART RX with 1-byte buffer",
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    "cveId": "CVE-2026-10644",
    "datePublished": "2026-06-28T04:02:47.441Z",
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          "packageName": "zephyr",
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              "status": "affected",
              "version": "3.6.0",
              "versionType": "semver"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Zephyr\u0027s IP socket recvmsg() implementation (subsys/net/lib/sockets/sockets_inet.c, insert_pktinfo()) validated the user-supplied ancillary (msg_control) buffer using only the payload length (msg-msg_controllen \u003c pktinfo_len) before writing a full control message consisting of an aligned cmsg header plus the payload. Because the check omitted the cmsg header size, a control buffer whose length falls in the under-checked window (e.g. 16-27 bytes for IPv4 IP_PKTINFO on a 64-bit target, where a single element actually occupies 28 bytes) passes the guard yet causes a fixed-size out-of-bounds write of up to one cmsg header (~12 bytes) past the end of the buffer. Under CONFIG_USERSPACE the recvmsg verifier allocates a kernel-heap copy of the control buffer sized to msg_controllen and runs the implementation against it, so the overflow corrupts kernel heap memory and is triggerable from an unprivileged userspace thread; in supervisor mode it corrupts the caller\u0027s buffer. The path is reachable on a UDP/IP socket with IP_PKTINFO/IPV6_RECVPKTINFO (or hoplimit/timestamping) enabled when the application calls recvmsg() with an undersized control buffer and a datagram is received; part of the overwritten bytes (the destination IP in ipi_addr) is influenced by the received packet. The fix makes the capacity check use NET_CMSG_SPACE(pktinfo_len) (aligned header + aligned data) and returns -ENOMEM when the buffer is too small. Affected: v3.6.0 through v4.4.0."
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      ],
      "metrics": [
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            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H",
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-787",
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        "dateUpdated": "2026-06-27T22:59:22.007Z",
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          "url": "https://github.com/zephyrproject-rtos/zephyr/commit/01fe77b2ec3885583f709a17c5203ce02bd77012"
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      "title": "Out-of-bounds heap write in Zephyr `recvmsg()` ancillary-data path (`insert_pktinfo` undersizes the control-buffer capacity check)",
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    "assignerShortName": "zephyr",
    "cveId": "CVE-2026-10643",
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                "id": "CVE-2026-10642",
                "options": [
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                  {
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                "timestamp": "2026-06-25T13:11:19.751133Z",
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        ],
        "problemTypes": [
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            "descriptions": [
              {
                "cweId": "CWE-835",
                "description": "CWE-835 Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
                "lang": "en",
                "type": "CWE"
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        "providerMetadata": {
          "dateUpdated": "2026-06-25T13:11:27.749Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
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          "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
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              "version": "4.1.0",
              "versionType": "semver"
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      "descriptions": [
        {
          "lang": "en",
          "value": "The Zephyr PL011 UART driver (drivers/serial/uart_pl011.c) contains an unbounded software loop in pl011_irq_tx_enable() that repeatedly invokes the interrupt-driven application callback while the TX interrupt mask bit (PL011_IMSC_TXIM) is set, to work around the controller\u0027s level-transition TX-interrupt behavior. When CTS hardware flow control is enabled (devicetree hw-flow-control or runtime UART_CFG_FLOW_CTRL_RTS_CTS) and the wired serial peer de-asserts CTS, the controller stops draining the TX FIFO; pl011_fifo_fill() then returns 0 on every call while the application still has pending data and therefore never disables the TX interrupt. The loop condition never clears, so the thread that called uart_irq_tx_enable() (e.g. h4_send() in the Bluetooth HCI H4 driver) spins indefinitely, hanging the executing context and stalling the transport \u2014 a denial of service (CWE-835). An attacker controlling the device attached to the UART\u0027s CTS line can trigger the hang by withholding CTS during transmission. Impact is availability only; there is no memory-safety, confidentiality, or integrity consequence. The vulnerable loop was introduced in commit b783bc8448ef (Feb 2025) and shipped in releases v4.1.0 through v4.4.0. The fix breaks out of the loop when CTS is blocking and arms the CTS modem-status interrupt to resume transmission when CTS re-asserts."
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      ],
      "metrics": [
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      "problemTypes": [
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              "cweId": "CWE-835",
              "description": "dos",
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        "dateUpdated": "2026-06-24T21:32:05.251Z",
        "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
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          "name": "GHSA-3fgh-73jh-2q5j",
          "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-3fgh-73jh-2q5j"
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      ],
      "title": "Unbounded TX busy-loop DoS in Zephyr PL011 UART driver under CTS hardware flow control",
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    "cveId": "CVE-2026-10642",
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        "title": "CISA ADP Vulnrichment"
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          "value": "Zephyr\u0027s Bluetooth Classic Hands-Free Profile (HFP) Hands-Free role parser (subsys/bluetooth/host/classic/hfp_hf.c) contains an out-of-bounds write. During Service Level Connection setup the HF sends AT+CIND=? and parses the AG\u0027s +CIND: response in cind_handle(), which assigns a per-entry counter index and calls cind_handle_values() for each list element. cind_handle_values() then wrote hf-ind_table[index] = i without verifying that index is within the 20-element int8_t ind_table[] array of struct bt_hfp_hf. Because the parser places no cap on the number of +CIND: list entries, a remote Attendant Gateway (a malicious, compromised, or spoofed peer the device connects to over Bluetooth) can send a response with more than 20 recognized indicator entries and drive index arbitrarily large, writing a small attacker-positioned value past the array into adjacent struct fields (feature masks, SDP/version state, the calls[] array, work/atomic bookkeeping) and potentially beyond the static connection pool slot. This yields memory corruption and at least denial of service of the Bluetooth host, triggered by a single malformed AT response with no user interaction. The sibling consumer ag_indicator_handle_values() already performed the equivalent bounds check; this commit adds the same index = ARRAY_SIZE(hf-ind_table) guard to close the gap. Affects builds with CONFIG_BT_HFP_HF enabled; introduced with the original HFP HF CIND parser (~v1.7) and present through v4.4.0."
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