CVE-2026-43426

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-08. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

usb: renesas_usbhs: fix use-after-free in ISR during device removal

In usbhs_remove(), the driver frees resources (including the pipe array) while the interrupt handler (usbhs_interrupt) is still registered. If an interrupt fires after usbhs_pipe_remove() but before the driver is fully unbound, the ISR may access freed memory, causing a use-after-free.

Fix this by calling devm_free_irq() before freeing resources. This ensures the interrupt handler is both disabled and synchronized (waits for any running ISR to complete) before usbhs_pipe_remove() is called.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
2.6%
KEV
Not listed

Published

May 8, 2026

Last Modified

May 20, 2026

Advisory Details (8)

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

usb: renesas_usbhs: fix use-after-free in ISR during device removal - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c7012fc73dab4829404fedeeaa8531f12ac8545f
generic

usb: renesas_usbhs: fix use-after-free in ISR during device removal - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9c6159d5b72d5fc265cce5da04f27d730b552e69
generic

usb: renesas_usbhs: fix use-after-free in ISR during device removal - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6ffe44f022c95b1b29c691d2169c5abc046f7580
generic

usb: renesas_usbhs: fix use-after-free in ISR during device removal - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6287e0c01ccb818e7214f88d885ffb7c9e81b0e0
generic

usb: renesas_usbhs: fix use-after-free in ISR during device removal - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/51afaf919bbaacdd9cc9e146033ae0a743a42dd7
generic

usb: renesas_usbhs: fix use-after-free in ISR during device removal - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3cbc242b88c607f55da3d0d0d336b49bf1e20412
generic

usb: renesas_usbhs: fix use-after-free in ISR during device removal - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1899edac312ef17a7234851686e8a703f56d0a84
generic

usb: renesas_usbhs: fix use-after-free in ISR during device removal - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0b7d11fd6e742ecc0b1eca44b4f0b93140c74bae

Vendor Advisories for CVE-2026-43426(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 42× 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 137 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-43426?
CVE-2026-43426 is a high vulnerability published on May 8, 2026. In the Linux kernel, the following vulnerability has been resolved: usb: renesas_usbhs: fix use-after-free in ISR during device removal In usbhs_remove(), the driver frees resources (including the pipe array) while the interrupt handler (usbhs_interrupt) is still registered. If an interrupt fires…
When was CVE-2026-43426 disclosed?
CVE-2026-43426 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on May 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43426 actively exploited?
CVE-2026-43426 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-43426?
CVE-2026-43426 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-43426?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43426, 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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