BlueKitchen BTstack < 1.8.1 AVRCP Browsing Target GET_FOLDER_ITEMS Handler OOB Read / Undefined Behavior

{
  "id": "ee48de270603e722824de0cf6d8adbddc22ce291b4fc253c78627f07f4463812",
  "url": "https://osv.dev/vulnerability/CVE-2026-28528",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "BlueKitchen BTstack < 1.8.1 AVRCP Browsing Target GET_FOLDER_ITEMS Handler OOB Read / Undefined Behavior",
    "summary": "BlueKitchen BTstack versions prior to 1.8.1 contain an out-of-bounds read vulnerability in the AVRCP Browsing Target GET_FOLDER_ITEMS handler that fails to validate packet boundaries and attribute count data. An attacker with a paired Bluetooth Classic connection can exploit insufficient bounds checking on the attr_id parameter to cause crashes and corrupt attribute bitmap state.",
    "evidence": "osv:CVE-2026-28528",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-28528",
      "aliases": [
        "CVE-2026-28528"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/bluekitchen/btstack",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "36519fc00c196925a87867e960a27e89b0406452"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.8.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "36519fc00c196925a87867e960a27e89b0406452"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v1.8.1"
                  },
                  {
                    "cpe": "cpe:2.3:a:bluekitchen-gmbh:btstack:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.8.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.8",
            "v1.6.2",
            "v1.6.1",
            "v1.6",
            "v1.5.6.3",
            "v1.5.6.2",
            "v1.5.6.1",
            "v1.5.6",
            "v1.5.5",
            "v1.5.4",
            "v1.5.3",
            "v1.5.2",
            "v1.5.1",
            "v1.4.1",
            "v1.4",
            "v1.3.2",
            "v1.3",
            "v1.2.1",
            "v1.2",
            "v1.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28528.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.321571327Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28528.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-28528",
        "https://www.vulncheck.com/advisories/bluekitchen-btstack-avrcp-browsing-target-get-folder-items-handler-oob-read-undefined-behavior",
        "https://github.com/bluekitchen/btstack/releases/tag/v1.8.1",
        "https://github.com/bluekitchen/btstack"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-125",
          "CWE-758"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28528.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-28528",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504759,
  "published_at": "2026-03-30T14:08:00.891+00:00"
}