| Reporter | Title | Published | Views | Family All 6 |
|---|---|---|---|---|
 | CVE-2026-11893 | 11 Aug 202604:42 | – | attackerkb |
 | CVE-2026-11893 Double free / use-after-free in Bouffalo Lab HCI driver send() error paths (hci_bflb) | 11 Aug 202604:42 | – | cvelist |
 | EUVD-2026-55935 | 11 Aug 202604:42 | – | euvd |
 | CVE-2026-11893 | 11 Aug 202605:17 | – | nvd |
 | PT-2026-70058 | 11 Aug 202600:00 | – | ptsecurity |
 | CVE-2026-11893 Double free / use-after-free in Bouffalo Lab HCI driver send() error paths (hci_bflb) | 11 Aug 202604:42 | – | vulnrichment |
[
{
"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"
}
]
}
]| Parameter | Position | Path | Description | CWE |
|---|---|---|---|---|
| buf | path | drivers/bluetooth/hci/hci_bflb.c | bt_bflb_send() violates buffer-ownership contract by unconditionally unref-ing the buffer on error paths, leading to use-after-free in TX buffer handling. | CWE-415 |
| buffer ownership contract | path | include/zephyr/drivers/bluetooth.h | The documented HCI driver API requires consuming the buffer reference only on success; errors must preserve caller ownership. The implementation routes error paths to unref the buffer, breaking the contract. | CWE-415 |
| buf | path | subsys/bluetooth/host/conn.c | Host TX path unrefs the same TX buffer on error, causing double-unref and potential use-after-free in the connection TX queue when controller transmission fails. | CWE-415 |
Data
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26 Aug 2026 16:59Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.9
EPSS0.00158
SSVC