CVE-2023-53046

MEDIUMNVD 4.74.7
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 4.7 from GitHub Security Advisory published 2025-05-02. NVD baseline CVSS 4.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this week
4.7EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 4.7Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

Bluetooth: Fix race condition in hci_cmd_sync_clear

There is a potential race condition in hci_cmd_sync_work and hci_cmd_sync_clear, and could lead to use-after-free. For instance, hci_cmd_sync_work is added to the 'req_workqueue' after cancel_work_sync The entry of 'cmd_sync_work_list' may be freed in hci_cmd_sync_clear, and causing kernel panic when it is used in 'hci_cmd_sync_work'.

Here's the call trace:

dump_stack_lvl+0x49/0x63 print_report.cold+0x5e/0x5d3 ? hci_cmd_sync_work+0x282/0x320 kasan_report+0xaa/0x120 ? hci_cmd_sync_work+0x282/0x320 __asan_report_load8_noabort+0x14/0x20 hci_cmd_sync_work+0x282/0x320 process_one_work+0x77b/0x11c0 ? _raw_spin_lock_irq+0x8e/0xf0 worker_thread+0x544/0x1180 ? poll_idle+0x1e0/0x1e0 kthread+0x285/0x320 ? process_one_work+0x11c0/0x11c0 ? kthread_complete_and_exit+0x30/0x30 ret_from_fork+0x22/0x30

Allocated by task 266: kasan_save_stack+0x26/0x50 __kasan_kmalloc+0xae/0xe0 kmem_cache_alloc_trace+0x191/0x350 hci_cmd_sync_queue+0x97/0x2b0 hci_update_passive_scan+0x176/0x1d0 le_conn_complete_evt+0x1b5/0x1a00 hci_le_conn_complete_evt+0x234/0x340 hci_le_meta_evt+0x231/0x4e0 hci_event_packet+0x4c5/0xf00 hci_rx_work+0x37d/0x880 process_one_work+0x77b/0x11c0 worker_thread+0x544/0x1180 kthread+0x285/0x320 ret_from_fork+0x22/0x30

Freed by task 269: kasan_save_stack+0x26/0x50 kasan_set_track+0x25/0x40 kasan_set_free_info+0x24/0x40 ____kasan_slab_free+0x176/0x1c0 __kasan_slab_free+0x12/0x20 slab_free_freelist_hook+0x95/0x1a0 kfree+0xba/0x2f0 hci_cmd_sync_clear+0x14c/0x210 hci_unregister_dev+0xff/0x440 vhci_release+0x7b/0xf0 __fput+0x1f3/0x970 ____fput+0xe/0x20 task_work_run+0xd4/0x160 do_exit+0x8b0/0x22a0 do_group_exit+0xba/0x2a0 get_signal+0x1e4a/0x25b0 arch_do_signal_or_restart+0x93/0x1f80 exit_to_user_mode_prepare+0xf5/0x1a0 syscall_exit_to_user_mode+0x26/0x50 ret_from_fork+0x15/0x30

CVSS v3
4.7
EG Score
4.7MEDIUMmedium confidence
EG Risk
21
EG Risk 21/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity47% × 45%
Impact severity (EG Severity): CVSS 4.7 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
3rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (4.7): severity, escalated by confirmed exploitation. This CVE's 4.7 is its impact severity (EG Severity), not escalated.

EG Severity
4.7 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 2, 2025

Last Modified

August 5, 2026

Vendor Advisories for CVE-2023-53046(1)

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 / EcosystemFix (by version range) / PatchReleasedSource
redhatkernel-0:5.14.0-427.13.1.el9_42024-04-30redhat
linuxKernel @ 6.1.22 (fixes >=5.17.0)—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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.1.25-1: fixed in 6.1.25-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.1.25-1: fixed in 6.1.25-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.1.25-1: fixed in 6.1.25-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 31× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 91 of 176 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 9 repeat rows among the latest 100 are merged into the row they repeat. The 85 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  4. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  5. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  6. 2026-10-19 14:55 UTCOSV refresh
  7. 2026-10-18 16:29 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  8. 2026-10-18 07:41 UTCEG score recompute
  9. 2026-10-17 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-10-16 16:36 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  11. 2026-10-15 16:29 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  12. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  13. 2026-10-13 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-10-12 18:13 UTCEG score recompute
  15. 2026-10-11 21:38 UTCEG score recompute
  16. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  17. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  18. 2026-10-08 17:06 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  19. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  20. 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  21. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  22. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  23. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  24. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  25. 2026-09-30 16:37 UTCEG score recompute
Show 66 more
  1. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-09-29 15:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-09-28 13:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  4. 2026-09-26 21:11 UTCOSV refresh
  5. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  6. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  7. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  8. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  9. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-09-16 05:11 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  11. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  12. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  13. 2026-09-12 14:58 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-09-11 09:34 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  15. 2026-09-08 21:58 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  16. 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  17. 2026-09-07 06:48 UTCOSV refresh
  18. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  19. 2026-09-05 15:26 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  20. 2026-09-04 13:58 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  21. 2026-09-04 05:04 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  22. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  23. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  24. 2026-09-01 04:36 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  25. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  26. 2026-08-30 01:20 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  27. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  28. 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  29. 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  30. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  31. 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  32. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  33. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  34. 2026-08-20 16:31 UTCOSV refresh
  35. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  36. 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  37. 2026-08-16 14:54 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  38. 2026-08-16 02:12 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  39. 2026-08-15 01:28 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  40. 2026-08-13 21:58 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  41. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  42. 2026-08-11 13:40 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  43. 2026-08-10 23:58 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  44. 2026-08-09 13:44 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  45. 2026-08-08 16:35 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  46. 2026-08-07 16:25 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  47. 2026-08-06 13:45 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  48. 2026-08-05 19:15 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  49. 2026-08-05 10:21 UTCEG score recompute
  50. 2026-08-05 10:21 UTCVendor advisory
  51. 2026-08-05 10:21 UTCGHSA enrichmentGHSA-wwhx-f3wh-2v8p · GitHub CVSS 4.7
  52. 2026-08-04 11:05 UTCEG score recompute
  53. 2026-08-04 11:05 UTCVendor advisory
  54. 2026-08-04 11:05 UTCGHSA enrichmentGHSA-wwhx-f3wh-2v8p · GitHub CVSS 4.7
  55. 2026-08-04 10:36 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  56. 2026-08-04 09:44 UTCEG score recompute
  57. 2026-08-04 09:44 UTCVendor advisory
  58. 2026-08-04 09:44 UTCGHSA enrichmentGHSA-wwhx-f3wh-2v8p · GitHub CVSS 4.7
  59. 2026-08-03 10:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-08-02 02:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  61. 2026-08-01 04:14 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  62. 2026-07-30 16:26 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  63. 2026-07-30 01:29 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  64. 2026-07-28 15:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  65. 2026-07-25 14:16 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  66. 2026-07-24 14:16 UTCEPSS rescoreEPSS 0.1% · 2nd percentile

Frequently asked(5)

What is CVE-2023-53046?
CVE-2023-53046 is a medium-severity vulnerability; its CVE record was published on May 2, 2025. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix race condition in hcicmdsync_clear There is a potential race condition in hcicmdsync_work and hcicmdsync_clear, and could lead to use-after-free. For instance, hcicmdsyncwork is added to the 'reqworkqueue' after…
When was the CVE record for CVE-2023-53046 published?
The CVE record for CVE-2023-53046 was published on May 2, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 5, 2026; the record at its source may have been updated since.
Is CVE-2023-53046 actively exploited?
CVE-2023-53046 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-53046?
CVE-2023-53046 has a CVSS v3 base score of 4.7 (NVD).
How do I remediate CVE-2023-53046?
A fix for CVE-2023-53046 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2023-53046 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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