CVE-2026-43018

HighCVSS 8.8/10Last modified Nov 11, 2026

Description

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= 95118dd4edfec950898a00180c6f998df0a6406d, < 59eecf0ffde15670e6a5e10c47be67f73d843b20; >= 95118dd4edfec950898a00180c6f998df0a6406d, < 5fb69e1eeea9d6cba80517e9f058b56b34bc3a81; >= 95118dd4edfec950898a00180c6f998df0a6406d, < 7cadb03be37e761130edb153544fe0770a842b19; >= 95118dd4edfec950898a00180c6f998df0a6406d, < 1d0bdbfe3e91c11f0a704c52443a9446a10d699c; >= 95118dd4edfec950898a00180c6f998df0a6406d, < ea3cd36d7382d5f8309df04c275d20df139ed42c; >= 95118dd4edfec950898a00180c6f998df0a6406d, < b255531b27da336571411248c2a72a350662bd09
LinuxLinux5.17

References

Timeline

Published
May 1, 2026
Last modified
Nov 11, 2026
NVD status
Modified

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CVE-2026-43018: High severity, CVSS 8.8 | Vulnix