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CVE-2026-11893

🗓️ 11 Aug 2026 04:42:39Reported by zephyrType 
cve
 cve
🔗 web.nvd.nist.gov👁 13 Views

Zephyr Bluetooth HCI driver double-unrefs buffer on send error, causing use-after-free and BLE stack DoS.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-11893
11 Aug 202604:42
attackerkb
cvelist
Cvelist
CVE-2026-11893 Double free / use-after-free in Bouffalo Lab HCI driver send() error paths (hci_bflb)
11 Aug 202604:42
cvelist
euvd
EUVD
EUVD-2026-55935
11 Aug 202604:42
euvd
nvd
NVD
CVE-2026-11893
11 Aug 202605:17
nvd
[
  {
    "vendor": "zephyrproject",
    "product": "zephyr",
    "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
    "packageName": "zephyr",
    "defaultStatus": "unaffected",
    "programFiles": [
      "drivers/bluetooth/hci/hci_bflb.c"
    ],
    "versions": [
      {
        "version": "4.4.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "4.4.2"
      }
    ]
  }
]

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11 Aug 2026 05:17Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.9
13