CVE-2023-54120

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2025-12-24. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: Fix race condition in hidp_session_thread

There is a potential race condition in hidp_session_thread that may lead to use-after-free. For instance, the timer is active while hidp_del_timer is called in hidp_session_thread(). After hidp_session_put, then 'session' will be freed, causing kernel panic when hidp_idle_timeout is running.

The solution is to use del_timer_sync instead of del_timer.

Here is the call trace:

? hidp_session_probe+0x780/0x780 call_timer_fn+0x2d/0x1e0 __run_timers.part.0+0x569/0x940 hidp_session_probe+0x780/0x780 call_timer_fn+0x1e0/0x1e0 ktime_get+0x5c/0xf0 lapic_next_deadline+0x2c/0x40 clockevents_program_event+0x205/0x320 run_timer_softirq+0xa9/0x1b0 __do_softirq+0x1b9/0x641 __irq_exit_rcu+0xdc/0x190 irq_exit_rcu+0xe/0x20 sysvec_apic_timer_interrupt+0xa1/0xc0

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

December 24, 2025

Last Modified

August 5, 2026

Advisory Details (8)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

Bluetooth: Fix race condition in hidp_session_thread - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c95930abd687fcd1aa040dc4fe90dff947916460
generic

Bluetooth: Fix race condition in hidp_session_thread - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/248af9feca062a4ca9c3f2ccf67056c8a5eb817f
generic

Bluetooth: Fix race condition in hidp_session_thread - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f6719fd8f409fa1da8dc956e93822d25e1e8b360
generic

Bluetooth: Fix race condition in hidp_session_thread - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0efb276d5848a3accc37c6f41b85e442c4768169
generic

Bluetooth: Fix race condition in hidp_session_thread - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f7ec5ca433ceead8d9d78fd2febff094f289441d
generic

Bluetooth: Fix race condition in hidp_session_thread - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8a99e6200c38b78a45dcd12a6bdc43fdf4dc36be
generic

Bluetooth: Fix race condition in hidp_session_thread - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5f3d214d19899183d4e0cce7552998262112e4ab
generic

Bluetooth: Fix race condition in hidp_session_thread - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/152f47bd6b995e0e98c85672f6d19894bc287ef2

Vendor Advisories for CVE-2023-54120(2)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:5.14.0-427.13.1.el9_42024-04-30redhat
linuxKernel @ 4.14.313—osv

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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (25 versions)5.10.178-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—6.1.25-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—6.1.25-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—6.1.25-1—

Data Freshness Timeline

(refreshed 8× in last 7d / 30× 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 195 total refreshes for this CVE.

  1. 2026-09-18 19:26 UTCEPSS rescore
  2. 2026-09-16 14:06 UTCEPSS rescore
  3. 2026-09-16 05:11 UTCEPSS rescore
  4. 2026-09-16 05:11 UTCEPSS rescore
  5. 2026-09-15 03:08 UTCEPSS rescore
  6. 2026-09-14 05:49 UTCOSV refresh
  7. 2026-09-13 16:45 UTCEPSS rescore
  8. 2026-09-12 14:58 UTCEPSS rescore
  9. 2026-09-11 14:51 UTCEPSS rescore
  10. 2026-09-11 09:34 UTCEPSS rescore
  11. 2026-09-08 21:58 UTCEPSS rescore
  12. 2026-09-07 15:59 UTCEPSS rescore
  13. 2026-09-06 13:46 UTCEPSS rescore
  14. 2026-09-05 15:26 UTCEPSS rescore
  15. 2026-09-04 13:58 UTCEPSS rescore
  16. 2026-09-04 05:04 UTCEPSS rescore
  17. 2026-09-02 14:10 UTCEPSS rescore
  18. 2026-09-01 13:52 UTCEPSS rescore
  19. 2026-09-01 04:36 UTCEPSS rescore
  20. 2026-08-30 19:15 UTCEPSS rescore
  21. 2026-08-30 01:20 UTCEPSS rescore
  22. 2026-08-28 21:39 UTCEPSS rescore
  23. 2026-08-27 14:23 UTCEPSS rescore
  24. 2026-08-26 14:44 UTCEPSS rescore
  25. 2026-08-26 06:43 UTCOSV refresh
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  1. 2026-08-25 13:47 UTCEPSS rescore
  2. 2026-08-23 00:17 UTCEPSS rescore
  3. 2026-08-23 00:17 UTCEPSS rescore
  4. 2026-08-21 23:47 UTCEPSS rescore
  5. 2026-08-20 22:53 UTCEPSS rescore
  6. 2026-08-19 17:02 UTCEPSS rescore
  7. 2026-08-18 13:46 UTCEPSS rescore
  8. 2026-08-16 14:54 UTCEPSS rescore
  9. 2026-08-16 02:12 UTCEPSS rescore
  10. 2026-08-15 01:28 UTCEPSS rescore
  11. 2026-08-13 21:58 UTCEPSS rescore
  12. 2026-08-12 13:49 UTCEPSS rescore
  13. 2026-08-11 13:40 UTCEPSS rescore
  14. 2026-08-10 23:58 UTCEPSS rescore
  15. 2026-08-09 22:47 UTCEG score recompute
  16. 2026-08-09 22:47 UTCVendor advisory
  17. 2026-08-09 22:47 UTCGHSA enrichment
  18. 2026-08-09 13:44 UTCEPSS rescore
  19. 2026-08-08 16:35 UTCEPSS rescore
  20. 2026-08-08 05:26 UTCEG score recompute
  21. 2026-08-08 05:26 UTCVendor advisory
  22. 2026-08-08 05:26 UTCGHSA enrichment
  23. 2026-08-07 16:25 UTCEPSS rescore
  24. 2026-08-06 13:45 UTCEPSS rescore
  25. 2026-08-06 07:10 UTCEG score recompute
  26. 2026-08-06 07:10 UTCVendor advisory
  27. 2026-08-06 07:10 UTCGHSA enrichment
  28. 2026-08-05 19:15 UTCEPSS rescore
  29. 2026-08-05 19:15 UTCEPSS rescore
  30. 2026-08-05 10:14 UTCEG score recompute
  31. 2026-08-05 10:14 UTCVendor advisory
  32. 2026-08-05 10:14 UTCGHSA enrichment
  33. 2026-08-04 10:45 UTCEG score recompute
  34. 2026-08-04 10:45 UTCVendor advisory
  35. 2026-08-04 10:45 UTCGHSA enrichment
  36. 2026-08-04 09:22 UTCEG score recompute▲ 8.80
  37. 2026-08-04 09:22 UTCVendor advisory
  38. 2026-08-04 09:22 UTCGHSA enrichment
  39. 2026-08-04 09:20 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  40. 2026-08-03 10:34 UTCEPSS rescore
  41. 2026-08-02 02:25 UTCEPSS rescore
  42. 2026-08-02 02:25 UTCEPSS rescore
  43. 2026-08-01 04:14 UTCEPSS rescore
  44. 2026-07-30 16:26 UTCEPSS rescore
  45. 2026-07-30 01:29 UTCEPSS rescore
  46. 2026-07-28 15:34 UTCEPSS rescore
  47. 2026-07-28 15:34 UTCEPSS rescore
  48. 2026-07-27 03:39 UTCOSV refresh
  49. 2026-07-26 14:53 UTCEPSS rescore
  50. 2026-07-25 14:16 UTCEPSS rescore
  51. 2026-07-24 14:16 UTCEPSS rescore
  52. 2026-07-23 14:16 UTCEPSS rescore
  53. 2026-07-23 02:30 UTCEG score recompute
  54. 2026-07-22 23:16 UTCEG score recompute
  55. 2026-07-22 14:07 UTCEPSS rescore
  56. 2026-07-22 14:07 UTCEPSS rescore
  57. 2026-07-21 15:23 UTCEPSS rescore
  58. 2026-07-20 17:06 UTCEPSS rescore
  59. 2026-07-19 14:30 UTCEPSS rescore
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  61. 2026-07-19 02:27 UTCEPSS rescore
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  63. 2026-07-18 10:03 UTCEPSS rescore
  64. 2026-07-18 10:03 UTCEPSS rescore
  65. 2026-07-16 17:01 UTCEPSS rescore
  66. 2026-07-15 16:56 UTCEPSS rescore
  67. 2026-07-15 01:59 UTCEPSS rescore
  68. 2026-07-15 01:59 UTCEPSS rescore
  69. 2026-07-13 22:28 UTCEPSS rescore
  70. 2026-07-13 22:28 UTCEPSS rescore
  71. 2026-07-13 06:11 UTCEPSS rescore
  72. 2026-07-12 05:45 UTCEPSS rescore
  73. 2026-07-12 05:45 UTCEPSS rescore
  74. 2026-07-11 08:26 UTCEPSS rescore
  75. 2026-07-09 22:15 UTCOSV refresh

Related CVEs(same product + same vendor)

Frequently asked(5)

What is CVE-2023-54120?
CVE-2023-54120 is a high vulnerability published on December 24, 2025. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix race condition in hidpsessionthread There is a potential race condition in hidpsessionthread that may lead to use-after-free. For instance, the timer is active while hidpdeltimer is called in hidpsessionthread().…
When was CVE-2023-54120 disclosed?
CVE-2023-54120 was first published in the National Vulnerability Database on December 24, 2025, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-54120 actively exploited?
CVE-2023-54120 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 76.7% of all scored CVEs.
What is the CVSS score of CVE-2023-54120?
CVE-2023-54120 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2023-54120?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-54120, 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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