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EUVD-2026-61491

🗓️ 18 Aug 2026 20:55:42Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 14 Views

Zephyr kernel syscall validation bug in thread_obj_validate allows user-mode DoS or access-control bypass via k_thread_join or k_thread_abort on unauthorized thread objects.

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Affected
Refs
[
  {
    "enisaIdVendor": [
      {
        "id": "2b7ee47b-fe6d-30ce-9ed1-5b19be3f4e89",
        "vendor": {
          "name": "zephyrproject"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "0381fb43-f92a-3909-a5a2-084a1f57a00d",
        "product": {
          "name": "Zephyr",
          "vendor": {
            "name": "zephyrproject-rtos"
          }
        },
        "product_version": "2.3.0 <4.4.2"
      }
    ]
  }
]

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