{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-10593",
        "assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
        "state": "PUBLISHED",
        "assignerShortName": "zephyr",
        "dateReserved": "2026-06-01T21:19:25.050Z",
        "datePublished": "2026-06-28T04:28:22.888Z",
        "dateUpdated": "2026-10-15T22:09:58.700Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
                    "defaultStatus": "unaffected",
                    "packageName": "zephyr",
                    "product": "zephyr",
                    "programFiles": [
                        "include/zephyr/bluetooth/audio/bap.h",
                        "subsys/bluetooth/audio/ascs.c",
                        "subsys/bluetooth/audio/bap_broadcast_sink.c",
                        "subsys/bluetooth/audio/bap_broadcast_source.c",
                        "subsys/bluetooth/audio/bap_endpoint.h",
                        "subsys/bluetooth/audio/bap_stream.c",
                        "subsys/bluetooth/audio/bap_unicast_client.c",
                        "subsys/bluetooth/audio/bap_unicast_client_internal.h"
                    ],
                    "vendor": "zephyrproject",
                    "versions": [
                        {
                            "lessThan": "4.3.1",
                            "status": "affected",
                            "version": "4.3.0",
                            "versionType": "semver"
                        },
                        {
                            "lessThan": "4.4.2",
                            "status": "affected",
                            "version": "4.4.0",
                            "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()).\n\nA 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 — a transition the dispatcher explicitly permits — during that window, causing a write through a NULL pointer and a crash (denial of service). The data written is itself remote-controlled.\n\nThe 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": [
                {
                    "cvssV3_1": {
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM",
                        "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    },
                    "format": "CVSS"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-476",
                            "description": "memory-safety",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "name": "Fix commit",
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/zephyrproject-rtos/zephyr/commit/52f25c903f2926cb1281b50fd79654668e2d483f"
                },
                {
                    "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",
            "x_generator": {
                "engine": "cvelib 1.8.0"
            },
            "providerMetadata": {
                "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
                "shortName": "zephyr",
                "dateUpdated": "2026-10-15T22:09:58.700Z"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-29T13:47:33.621798Z",
                                "id": "CVE-2026-10593",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-29T13:47:51.924Z"
                }
            }
        ]
    }
}