CVE-2026-43018
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.26% probability · 17th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699cPatch
- https://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20Patch
- https://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81Patch
- https://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19Patch
- https://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09Patch
- https://git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42cPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.