CVE-2022-50386

HIGHNVD 8.08.0—
EchelonGraph scoreMEDIUM confidence

Score 8.0 from GitHub Security Advisory (severity: HIGH) published 2025-09-18. NVD baseline CVSS 8.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
8.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.0Exploit: None knownExposed: 0

A fix is available — apply it.

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

Bluetooth: L2CAP: Fix user-after-free

This uses l2cap_chan_hold_unless_zero() after calling __l2cap_get_chan_blah() to prevent the following trace:

Bluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref *kref) Bluetooth: chan 0000000023c4974d Bluetooth: parent 00000000ae861c08 ================================================================== BUG: KASAN: use-after-free in __mutex_waiter_is_first kernel/locking/mutex.c:191 [inline] BUG: KASAN: use-after-free in __mutex_lock_common kernel/locking/mutex.c:671 [inline] BUG: KASAN: use-after-free in __mutex_lock+0x278/0x400 kernel/locking/mutex.c:729 Read of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389

CVSS v3
8.0
EG Score
8.0(medium)
EG Risk
36(Track)
EG Risk 36/100SSVC: 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
Severity80% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

September 18, 2025

Last Modified

August 5, 2026

Advisory Details (9)

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

Bluetooth: L2CAP: Fix user-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f
generic

Bluetooth: L2CAP: Fix user-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/15fc21695eb606bdc5d483b92118ee42610a952d
generic

Bluetooth: L2CAP: Fix user-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6ffde6e03085874ae22263ff4cef4869f797e84f
generic

Bluetooth: L2CAP: Fix user-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d1e894f950ad48897d1a7cb05909ea29d8c3810e
generic

Bluetooth: L2CAP: Fix user-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0c108cf3ad386e0084277093b55a351c49e0be27
generic

Bluetooth: L2CAP: Fix user-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45
generic

Bluetooth: L2CAP: Fix user-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d91fc2836562f299f34e361e089e9fe154da4f73
generic

Bluetooth: L2CAP: Fix user-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/843fc4e386dd84b806a7f07fb062d8c3a44e5364
generic

Bluetooth: L2CAP: Fix user-after-free - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/11e40d6c0823f699d8ad501e48d1c3ae4be386cd

Vendor Advisories for CVE-2022-50386(12)

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

Patch Availability(13)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:4.18.0-193.178.1.el8_22025-12-17redhat
redhatkernel-0:3.10.0-1160.143.1.el72025-12-09redhat
redhatkernel-rt-0:3.10.0-1160.143.1.rt56.1295.el72025-12-09redhat
redhatkernel-0:4.18.0-305.179.1.el8_42025-12-04redhat
redhatkernel-0:5.14.0-284.148.1.el9_22025-11-25redhat
redhatkernel-0:4.18.0-372.170.1.el8_62025-11-25redhat
redhatkernel-rt-0:5.14.0-284.148.1.rt14.433.el9_22025-11-25redhat
redhatkernel-0:4.18.0-477.118.1.el8_82025-11-12redhat
redhatkernel-0:5.14.0-70.153.1.el9_02025-11-12redhat
redhatkernel-rt-0:5.14.0-70.153.1.rt21.225.el9_02025-11-12redhat
redhatkernel-rt-0:4.18.0-553.81.1.rt7.422.el8_102025-10-27redhat
redhatkernel-0:4.18.0-553.81.1.el8_102025-10-27redhat
linuxKernel @ 4.9.331—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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 54× 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 122 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-50386?
CVE-2022-50386 is a high vulnerability published on September 18, 2025. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix user-after-free This uses l2capchanholdunlesszero() after calling l2capgetchan_blah() to prevent the following trace: Bluetooth: l2capcore.c:static void l2capchan_destroy(struct kref *kref) Bluetooth: chan…
When was CVE-2022-50386 disclosed?
CVE-2022-50386 was first published in the National Vulnerability Database on September 18, 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-2022-50386 actively exploited?
CVE-2022-50386 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 73.8% of all scored CVEs.
What is the CVSS score of CVE-2022-50386?
CVE-2022-50386 has a CVSS v3 base score of 8.0 (NVD).
How do I remediate CVE-2022-50386?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-50386, 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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