CVE-2026-46056

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-27. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

A fix is available — apply it.

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 v3
8.8
EG Score
8.8(medium)
EPSS
17.9%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 19, 2026

Advisory Details (6)

Auto-updated Jun 1, 2026
No patch confirmed yet.
generic

Bluetooth: hci_event: fix potential UAF in SSP passkey handlers - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e08d75753db17aa943d7622f09d9c217b5bfd3b8
generic

Bluetooth: hci_event: fix potential UAF in SSP passkey handlers - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b6ae482f88654db407c8c17619d4b62959b903ef
generic

Bluetooth: hci_event: fix potential UAF in SSP passkey handlers - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8c6443bb9257b780986fb67ec08565bf48ecb8d7
generic

Bluetooth: hci_event: fix potential UAF in SSP passkey handlers - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/85fa3512048793076eef658f66489112dcc91993
generic

Bluetooth: hci_event: fix potential UAF in SSP passkey handlers - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/204028af77a265e31ceb4ba7f643349a3cca72b2
generic

Bluetooth: hci_event: fix potential UAF in SSP passkey handlers - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/01a6431766c35dfedb86e0cb5d3fc80c6d604a47

Vendor Advisories for CVE-2026-46056(6)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-07-11ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-07-11ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-07-11ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-07-11ubuntu
redhatkernel-0:5.14.0-687.17.1.el9_82026-06-22redhat
redhatkernel-0:6.12.0-211.26.1.el10_22026-06-20redhat
redhatkernel-rt-0:4.18.0-553.134.1.rt7.475.el8_102026-06-16redhat
redhatkernel-0:4.18.0-553.134.1.el8_102026-06-16redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 58× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 149 total refreshes for this CVE.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-19 14:31 UTCEPSS rescore
  5. 2026-07-19 02:29 UTCEPSS rescore
  6. 2026-07-18 10:04 UTCEPSS rescore
  7. 2026-07-16 17:03 UTCEPSS rescore
  8. 2026-07-15 16:57 UTCEPSS rescore
  9. 2026-07-15 02:00 UTCEPSS rescore
  10. 2026-07-13 22:30 UTCEPSS rescore
  11. 2026-07-13 06:13 UTCEPSS rescore
  12. 2026-07-12 05:46 UTCEPSS rescore
  13. 2026-07-11 23:42 UTCVendor advisory
  14. 2026-07-11 23:42 UTCGHSA enrichment
  15. 2026-07-11 08:27 UTCEPSS rescore
  16. 2026-07-09 19:10 UTCEPSS rescore
  17. 2026-07-08 23:51 UTCVendor advisory
  18. 2026-07-08 23:51 UTCGHSA enrichment
  19. 2026-07-08 15:16 UTCEPSS rescore
  20. 2026-07-07 13:46 UTCEPSS rescore
  21. 2026-07-06 16:27 UTCEPSS rescore
  22. 2026-07-06 02:23 UTCEPSS rescore
  23. 2026-07-05 02:30 UTCEPSS rescore
  24. 2026-07-04 06:31 UTCEPSS rescore
  25. 2026-07-01 15:07 UTCEPSS rescore
Show 75 more
  1. 2026-07-01 10:15 UTCVendor advisory
  2. 2026-07-01 10:15 UTCGHSA enrichment
  3. 2026-06-30 23:22 UTCEPSS rescore
  4. 2026-06-30 03:21 UTCVendor advisory
  5. 2026-06-30 03:21 UTCGHSA enrichment
  6. 2026-06-29 14:20 UTCVendor advisory
  7. 2026-06-29 14:20 UTCGHSA enrichment
  8. 2026-06-29 14:06 UTCEPSS rescore
  9. 2026-06-29 14:06 UTCEPSS rescore
  10. 2026-06-28 20:57 UTCVendor advisory
  11. 2026-06-28 20:57 UTCGHSA enrichment
  12. 2026-06-28 14:07 UTCEPSS rescore
  13. 2026-06-28 06:51 UTCVendor advisory
  14. 2026-06-28 06:51 UTCGHSA enrichment
  15. 2026-06-28 04:56 UTCEPSS rescore
  16. 2026-06-28 04:56 UTCEPSS rescore
  17. 2026-06-27 18:29 UTCVendor advisory
  18. 2026-06-27 18:29 UTCGHSA enrichment
  19. 2026-06-27 05:50 UTCVendor advisory
  20. 2026-06-27 05:50 UTCGHSA enrichment
  21. 2026-06-27 03:08 UTCEPSS rescore
  22. 2026-06-26 17:06 UTCVendor advisory
  23. 2026-06-26 17:06 UTCGHSA enrichment
  24. 2026-06-26 02:27 UTCVendor advisory
  25. 2026-06-26 02:27 UTCGHSA enrichment
  26. 2026-06-25 13:49 UTCEPSS rescore
  27. 2026-06-25 13:29 UTCVendor advisory
  28. 2026-06-25 13:29 UTCGHSA enrichment
  29. 2026-06-25 01:06 UTCVendor advisory
  30. 2026-06-25 01:05 UTCGHSA enrichment
  31. 2026-06-24 14:05 UTCEPSS rescore
  32. 2026-06-23 21:33 UTCEPSS rescore
  33. 2026-06-23 21:33 UTCEPSS rescore
  34. 2026-06-22 14:25 UTCEPSS rescore
  35. 2026-06-22 14:25 UTCEPSS rescore
  36. 2026-06-21 14:56 UTCEPSS rescore
  37. 2026-06-21 14:56 UTCEPSS rescore
  38. 2026-06-21 01:59 UTCEPSS rescore
  39. 2026-06-21 01:59 UTCEPSS rescore
  40. 2026-06-19 19:26 UTCEPSS rescore
  41. 2026-06-19 19:26 UTCEPSS rescore
  42. 2026-06-18 17:52 UTCEPSS rescore
  43. 2026-06-18 17:52 UTCEPSS rescore
  44. 2026-06-17 18:42 UTCVendor advisory
  45. 2026-06-17 18:42 UTCGHSA enrichment
  46. 2026-06-17 17:53 UTCEPSS rescore
  47. 2026-06-17 04:49 UTCVendor advisory
  48. 2026-06-17 04:49 UTCGHSA enrichment
  49. 2026-06-16 17:52 UTCEPSS rescore
  50. 2026-06-16 16:07 UTCVendor advisory
  51. 2026-06-16 16:06 UTCGHSA enrichment
  52. 2026-06-16 01:55 UTCVendor advisory
  53. 2026-06-16 01:54 UTCGHSA enrichment
  54. 2026-06-15 17:49 UTCEPSS rescore
  55. 2026-06-15 13:30 UTCVendor advisory
  56. 2026-06-15 13:30 UTCGHSA enrichment
  57. 2026-06-15 00:10 UTCVendor advisory
  58. 2026-06-15 00:09 UTCGHSA enrichment
  59. 2026-06-14 11:45 UTCVendor advisory
  60. 2026-06-14 11:45 UTCGHSA enrichment
  61. 2026-06-13 23:23 UTCVendor advisory
  62. 2026-06-13 23:22 UTCGHSA enrichment
  63. 2026-06-13 23:00 UTCEPSS rescore
  64. 2026-06-13 11:00 UTCVendor advisory
  65. 2026-06-13 11:00 UTCGHSA enrichment
  66. 2026-06-12 23:12 UTCEPSS rescore
  67. 2026-06-12 23:12 UTCEPSS rescore
  68. 2026-06-12 22:26 UTCVendor advisory
  69. 2026-06-12 22:26 UTCGHSA enrichment
  70. 2026-06-12 10:02 UTCVendor advisory
  71. 2026-06-12 10:01 UTCGHSA enrichment
  72. 2026-06-11 21:39 UTCGHSA enrichment
  73. 2026-06-11 14:00 UTCEPSS rescore
  74. 2026-06-11 09:16 UTCVendor advisory
  75. 2026-06-11 09:16 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-46056?
CVE-2026-46056 is a high vulnerability published on May 27, 2026. 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 hciuserpasskeynotifyevt() and hcikeypressnotify_evt(), otherwise the connection can be freed…
When was CVE-2026-46056 disclosed?
CVE-2026-46056 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46056 actively exploited?
CVE-2026-46056 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46056?
CVE-2026-46056 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-46056?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46056, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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