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CVE-2026-12051 NULL pointer dereference in USB DFU device_next download handler (handle_download)

🗓️ 11 Aug 2026 05:31:19Reported by zephyrType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

NULL pointer dereference in Zephyr USB DFU handle_download causes denial of service via zero-length DFU download request.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-12051
11 Aug 202605:31
attackerkb
cve
CVE
CVE-2026-12051
11 Aug 202605:31
cve
euvd
EUVD
EUVD-2026-55939
11 Aug 202605:31
euvd
nvd
NVD
CVE-2026-12051
11 Aug 202606:17
nvd
[
  {
    "vendor": "zephyrproject",
    "product": "zephyr",
    "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
    "packageName": "zephyr",
    "defaultStatus": "unaffected",
    "programFiles": [
      "subsys/usb/device_next/class/usbd_dfu.c"
    ],
    "versions": [
      {
        "version": "4.4.0",
        "status": "affected",
        "lessThan": "4.5.0",
        "versionType": "semver"
      }
    ]
  }
]

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