CVE-2026-43018

HIGH EPSS 16.9%
Published May 1, 20262mo ago · Modified Jun 17, 20262w ago
8.8 CVSS 3.1
High
Find Similar
Published May 1, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
16.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 11

VendorProductVersionRange
linuxlinux_kernel*≥5.17  –  <6.1.168
linuxlinux_kernel*≥6.2  –  <6.6.134
linuxlinux_kernel*≥6.7  –  <6.12.81
linuxlinux_kernel*≥6.13  –  <6.18.22
linuxlinux_kernel*≥6.19  –  <6.19.12
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42c
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42c
    Patch