CVE-2026-46056

Advisory lineage Upstream: 0 Downstream: 11
Analyzed
Published: 27 May 2026, 12:57
Last modified:19 Jun 2026, 11:59

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.8 HIGH
v3.1 (cve.org)
EPSS Score
0.26% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

27 May 2026, 12:57
Published
Vulnerability first disclosed
19 Jun 2026, 11:59
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers hci_conn lookup and field access must be covered by hdev lock in hci_user_passkey_notify_evt() and hci_keypress_notify_evt(), otherwise the connection can be freed concurrently. Extend the hci_dev_lock critical section to cover all conn usage in both handlers. Keep the existing keypress notification behavior unchanged by routing the early exits through a common unlock path.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.26%• Percentile: 18%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • linux•linux

    ≥ 92a25256f142d55e25f9959441cea6ddeabae57e, < ea18732d2614557e59f4c0d8cdbe6611aeab33b7 | ≥ 92a25256f142d55e25f9959441cea6ddeabae57e, < d28311539ac9f65e29308ea219ecaa48aa5e76e5 | ≥ 92a25256f142d55e25f9959441cea6ddeabae57e, < b6ae482f88654db407c8c17619d4b62959b903ef | ≥ 92a25256f142d55e25f9959441cea6ddeabae57e, < 204028af77a265e31ceb4ba7f643349a3cca72b2 | ≥ 92a25256f142d55e25f9959441cea6ddeabae57e, < 01a6431766c35dfedb86e0cb5d3fc80c6d604a47 | ≥ 92a25256f142d55e25f9959441cea6ddeabae57e, < e08d75753db17aa943d7622f09d9c217b5bfd3b8 | ≥ 92a25256f142d55e25f9959441cea6ddeabae57e, < 8c6443bb9257b780986fb67ec08565bf48ecb8d7 | ≥ 92a25256f142d55e25f9959441cea6ddeabae57e, < 85fa3512048793076eef658f66489112dcc91993 | 3.7

  • linux•linux kernel

    ≥ 3.7, < 6.1.175 | ≥ 6.2, < 6.6.140 | ≥ 6.7, < 6.12.86 | ≥ 6.13, < 6.18.27 | ≥ 6.19, < 7.0.4

References (8)