CVE-2026-43069

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-05. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

Bluetooth: hci_ll: Fix firmware leak on error path

Smatch reports:

drivers/bluetooth/hci_ll.c:587 download_firmware() warn: 'fw' from request_firmware() not released on lines: 544.

In download_firmware(), if request_firmware() succeeds but the returned firmware content is invalid (no data or zero size), the function returns without releasing the firmware, resulting in a resource leak.

Fix this by calling release_firmware() before returning when request_firmware() succeeded but the firmware content is invalid.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

May 5, 2026

Last Modified

May 29, 2026

Advisory Details (8)

Auto-updated Aug 2, 2026
No patch confirmed yet.
generic

Bluetooth: hci_ll: Fix firmware leak on error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e6d95488c8c964d1df0d3e1db44c958706311e86
generic

Bluetooth: hci_ll: Fix firmware leak on error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b2dfbf1b5ff192cefd49574b951a4af9ddd32213
generic

Bluetooth: hci_ll: Fix firmware leak on error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a7803df606a7d22e896b030f619e1d9d20ae0c6b
generic

Bluetooth: hci_ll: Fix firmware leak on error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b
generic

Bluetooth: hci_ll: Fix firmware leak on error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/95e8601af227b2b4390eecf8db6abdb9f6a91f17
generic

Bluetooth: hci_ll: Fix firmware leak on error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5213ef54528dd1ac79b846e30d8f72ce092794aa
generic

Bluetooth: hci_ll: Fix firmware leak on error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/31148a7be723aa9f2e8fbd62424825ab8d577973
generic

Bluetooth: hci_ll: Fix firmware leak on error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/28904375d54b436a757641fb0331537778c0de5a

Vendor Advisories for CVE-2026-43069(1)

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

Patch Availability(27)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-23ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-23ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-23ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-23ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1061.64~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-23ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-23ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-23ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-23ubuntu
linuxKernel @ 5.10.253—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 (53 versions)5.10.257-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (48 versions)6.1.170-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)6.12.85-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (124 versions)6.19.11-1—

Weakness Classification(1)

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

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 5× in last 7d / 28× 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 185 total refreshes for this CVE.

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

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

Frequently asked(5)

What is CVE-2026-43069?
CVE-2026-43069 is a medium vulnerability published on May 5, 2026. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_ll: Fix firmware leak on error path Smatch reports: drivers/bluetooth/hcill.c:587 downloadfirmware() warn: 'fw' from request_firmware() not released on lines: 544. In downloadfirmware(), if requestfirmware() succeeds…
When was CVE-2026-43069 disclosed?
CVE-2026-43069 was first published in the National Vulnerability Database on May 5, 2026, with the most recent update on May 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43069 actively exploited?
CVE-2026-43069 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 98.3% of all scored CVEs.
What is the CVSS score of CVE-2026-43069?
CVE-2026-43069 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-43069?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43069, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-43069

Explore →

Is Your Infrastructure Affected by CVE-2026-43069?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs