CVSS VectorNVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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7DescriptionNVD
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt
hci_conn lookup and field access must be covered by hdev lock in hci_le_remote_conn_param_req_evt, otherwise it's possible it is freed concurrently.
Extend the hci_dev_lock critical section to cover all conn usage.
AnalysisAI
Use-after-free in Linux Kernel Bluetooth stack allows adjacent network attackers to execute arbitrary code, escalate privileges, or cause denial of service without authentication. The vulnerability exists in hci_le_remote_conn_param_req_evt where hci_conn lookup and field access occurs outside the hdev lock protection, enabling concurrent memory corruption. …
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RemediationAI
Within 24 hours: Identify all systems running Linux kernel versions prior to 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12, or 7.0 mainline; document Bluetooth exposure (enabled/in-use). Within 7 days: Apply kernel patches to all affected systems (prioritize production servers and edge devices with Bluetooth enabled); test updates in non-production environments first. …
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EUVD-2026-26617