CVE-2023-53057

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2025-05-02. NVD baseline CVSS 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

A fix is available — apply it.

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

Bluetooth: HCI: Fix global-out-of-bounds

To loop a variable-length array, hci_init_stage_sync(stage) considers that stage[i] is valid as long as stage[i-1].func is valid. Thus, the last element of stage[].func should be intentionally invalid as hci_init0[], le_init2[], and others did. However, amp_init1[] and amp_init2[] have no invalid element, letting hci_init_stage_sync() keep accessing amp_init1[] over its valid range. This patch fixes this by adding {} in the last of amp_init1[] and amp_init2[].

================================================================== BUG: KASAN: global-out-of-bounds in hci_dev_open_sync ( /v6.2-bzimage/net/bluetooth/hci_sync.c:3154 /v6.2-bzimage/net/bluetooth/hci_sync.c:3343 /v6.2-bzimage/net/bluetooth/hci_sync.c:4418 /v6.2-bzimage/net/bluetooth/hci_sync.c:4609 /v6.2-bzimage/net/bluetooth/hci_sync.c:4689) Read of size 8 at addr ffffffffaed1ab70 by task kworker/u5:0/1032 CPU: 0 PID: 1032 Comm: kworker/u5:0 Not tainted 6.2.0 #3 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04 Workqueue: hci1 hci_power_on Call Trace: dump_stack_lvl (/v6.2-bzimage/lib/dump_stack.c:107 (discriminator 1)) print_report (/v6.2-bzimage/mm/kasan/report.c:307 /v6.2-bzimage/mm/kasan/report.c:417) ? hci_dev_open_sync (/v6.2-bzimage/net/bluetooth/hci_sync.c:3154 /v6.2-bzimage/net/bluetooth/hci_sync.c:3343 /v6.2-bzimage/net/bluetooth/hci_sync.c:4418 /v6.2-bzimage/net/bluetooth/hci_sync.c:4609 /v6.2-bzimage/net/bluetooth/hci_sync.c:4689) kasan_report (/v6.2-bzimage/mm/kasan/report.c:184 /v6.2-bzimage/mm/kasan/report.c:519) ? hci_dev_open_sync (/v6.2-bzimage/net/bluetooth/hci_sync.c:3154 /v6.2-bzimage/net/bluetooth/hci_sync.c:3343 /v6.2-bzimage/net/bluetooth/hci_sync.c:4418 /v6.2-bzimage/net/bluetooth/hci_sync.c:4609 /v6.2-bzimage/net/bluetooth/hci_sync.c:4689) hci_dev_open_sync (/v6.2-bzimage/net/bluetooth/hci_sync.c:3154 /v6.2-bzimage/net/bluetooth/hci_sync.c:3343 /v6.2-bzimage/net/bluetooth/hci_sync.c:4418 /v6.2-bzimage/net/bluetooth/hci_sync.c:4609 /v6.2-bzimage/net/bluetooth/hci_sync.c:4689) ? __pfx_hci_dev_open_sync (/v6.2-bzimage/net/bluetooth/hci_sync.c:4635) ? mutex_lock (/v6.2-bzimage/./arch/x86/include/asm/atomic64_64.h:190 /v6.2-bzimage/./include/linux/atomic/atomic-long.h:443 /v6.2-bzimage/./include/linux/atomic/atomic-instrumented.h:1781 /v6.2-bzimage/kernel/locking/mutex.c:171 /v6.2-bzimage/kernel/locking/mutex.c:285) ? __pfx_mutex_lock (/v6.2-bzimage/kernel/locking/mutex.c:282) hci_power_on (/v6.2-bzimage/net/bluetooth/hci_core.c:485 /v6.2-bzimage/net/bluetooth/hci_core.c:984) ? __pfx_hci_power_on (/v6.2-bzimage/net/bluetooth/hci_core.c:969) ? read_word_at_a_time (/v6.2-bzimage/./include/asm-generic/rwonce.h:85) ? strscpy (/v6.2-bzimage/./arch/x86/include/asm/word-at-a-time.h:62 /v6.2-bzimage/lib/string.c:161) process_one_work (/v6.2-bzimage/kernel/workqueue.c:2294) worker_thread (/v6.2-bzimage/./include/linux/list.h:292 /v6.2-bzimage/kernel/workqueue.c:2437) ? __pfx_worker_thread (/v6.2-bzimage/kernel/workqueue.c:2379) kthread (/v6.2-bzimage/kernel/kthread.c:376) ? __pfx_kthread (/v6.2-bzimage/kernel/kthread.c:331) ret_from_fork (/v6.2-bzimage/arch/x86/entry/entry_64.S:314) The buggy address belongs to the variable: amp_init1+0x30/0x60 The buggy address belongs to the physical page: page:000000003a157ec6 refcount:1 mapcount:0 mapping:0000000000000000 ia flags: 0x200000000001000(reserved|node=0|zone=2) raw: 0200000000001000 ffffea0005054688 ffffea0005054688 000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffffffffaed1aa00: f9 f9 f9 f9 00 00 00 00 f9 f9 f9 f9 00 00 00 00 ffffffffaed1aa80: 00 00 00 00 f9 f9 f9 f9 00 00 00 00 00 00 00 00 >ffffffffaed1ab00: 00 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 f9 f9 ---truncated---

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

May 2, 2025

Last Modified

August 5, 2026

Advisory Details (3)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

Bluetooth: HCI: Fix global-out-of-bounds - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bce56405201111807cc8e4f47c6de3e10b17c1ac
generic

Bluetooth: HCI: Fix global-out-of-bounds - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8497222b22b591c6b2d106e0e3c1672ffe4e10e0
generic

Bluetooth: HCI: Fix global-out-of-bounds - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b3168abd24245aa0775c5a387dcf94d36ca7e738

Vendor Advisories for CVE-2023-53057(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 / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:5.14.0-427.13.1.el9_42024-04-30redhat
linuxKernel @ 6.1.22—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 17× in last 7d / 50× 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 117 total refreshes for this CVE.

  1. 2026-08-07 16:25 UTCEPSS rescore
  2. 2026-08-06 13:45 UTCEPSS rescore
  3. 2026-08-05 19:15 UTCEPSS rescore
  4. 2026-08-05 19:15 UTCEPSS rescore
  5. 2026-08-05 10:21 UTCEG score recompute
  6. 2026-08-05 10:21 UTCVendor advisory
  7. 2026-08-05 10:21 UTCGHSA enrichment
  8. 2026-08-04 11:05 UTCEG score recompute
  9. 2026-08-04 11:05 UTCVendor advisory
  10. 2026-08-04 11:05 UTCGHSA enrichment
  11. 2026-08-04 10:36 UTCEPSS rescore
  12. 2026-08-04 09:44 UTCEG score recompute
  13. 2026-08-04 09:44 UTCVendor advisory
  14. 2026-08-04 09:44 UTCGHSA enrichment
  15. 2026-08-03 10:34 UTCEPSS rescore
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  1. 2026-07-24 07:11 UTCOSV refresh
  2. 2026-07-23 14:16 UTCEPSS rescore
  3. 2026-07-23 02:29 UTCEG score recompute
  4. 2026-07-22 23:16 UTCEG score recompute
  5. 2026-07-22 14:07 UTCEPSS rescore
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  7. 2026-07-21 15:23 UTCEPSS rescore
  8. 2026-07-20 17:06 UTCEPSS rescore
  9. 2026-07-19 14:30 UTCEPSS rescore
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  24. 2026-07-11 08:26 UTCEPSS rescore
  25. 2026-07-09 19:08 UTCEPSS rescore
  26. 2026-07-08 15:13 UTCEPSS rescore
  27. 2026-07-07 13:45 UTCEPSS rescore
  28. 2026-07-07 13:44 UTCEPSS rescore
  29. 2026-07-07 02:51 UTCOSV refresh
  30. 2026-07-06 16:26 UTCEPSS rescore
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  32. 2026-07-06 02:22 UTCEPSS rescore
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  36. 2026-07-01 15:05 UTCEPSS rescore
  37. 2026-06-30 23:21 UTCEPSS rescore
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  44. 2026-06-25 13:48 UTCEPSS rescore
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  48. 2026-06-23 21:31 UTCEPSS rescore
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  50. 2026-06-22 14:24 UTCEPSS rescore
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  56. 2026-06-19 19:24 UTCEPSS rescore
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  58. 2026-06-18 17:51 UTCEPSS rescore
  59. 2026-06-18 13:43 UTCOSV refresh
  60. 2026-06-16 17:51 UTCEPSS rescore
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  72. 2026-06-07 15:24 UTCEPSS rescore
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  74. 2026-06-06 13:46 UTCEPSS rescore
  75. 2026-06-06 13:46 UTCEPSS rescore

Frequently asked(5)

What is CVE-2023-53057?
CVE-2023-53057 is a high vulnerability published on May 2, 2025. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HCI: Fix global-out-of-bounds To loop a variable-length array, hciinitstage_sync(stage) considers that stage[i] is valid as long as stage[i-1].func is valid. Thus, the last element of stage[].func should be intentionally…
When was CVE-2023-53057 disclosed?
CVE-2023-53057 was first published in the National Vulnerability Database on May 2, 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-2023-53057 actively exploited?
CVE-2023-53057 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 90.4% of all scored CVEs.
What is the CVSS score of CVE-2023-53057?
CVE-2023-53057 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2023-53057?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-53057, 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.

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