CVE-2026-31758

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-01. 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: usbtmc: Flush anchored URBs in usbtmc_release

When calling usbtmc_release, pending anchored URBs must be flushed or killed to prevent use-after-free errors (e.g. in the HCD giveback path). Call usbtmc_draw_down() to allow anchored URBs to be completed.

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

Published

May 1, 2026

Last Modified

May 8, 2026

Advisory Details (8)

Auto-updated May 3, 2026
No patch confirmed yet.
generic

usb: usbtmc: Flush anchored URBs in usbtmc_release - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e189d443767f7cd390c52f2e122e1fc41c7562d6
generic

usb: usbtmc: Flush anchored URBs in usbtmc_release - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d40198de50232e04c14c6e2092e896766c95ea48
generic

usb: usbtmc: Flush anchored URBs in usbtmc_release - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d13318dec0c1e0e2ac16f8ecbd522db14cea4bb1
generic

usb: usbtmc: Flush anchored URBs in usbtmc_release - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/977b632db51d231dec0bc571089a5c2402674139
generic

usb: usbtmc: Flush anchored URBs in usbtmc_release - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/95e09b07e50290254b28b8395509473104518f8c
generic

usb: usbtmc: Flush anchored URBs in usbtmc_release - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/959ef329071136e4335b54822fe2f607659b4569
generic

usb: usbtmc: Flush anchored URBs in usbtmc_release - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8a768552f7a8276fb9e01d49773d2094ace7c8f1
generic

usb: usbtmc: Flush anchored URBs in usbtmc_release - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7fa8f61bab3fb75b5deba8a0f3abb74dc5068d9f

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 41× 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 123 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-31758?
CVE-2026-31758 is a high vulnerability published on May 1, 2026. In the Linux kernel, the following vulnerability has been resolved: usb: usbtmc: Flush anchored URBs in usbtmc_release When calling usbtmc_release, pending anchored URBs must be flushed or killed to prevent use-after-free errors (e.g. in the HCD giveback path). Call usbtmcdrawdown() to allow…
When was CVE-2026-31758 disclosed?
CVE-2026-31758 was first published in the National Vulnerability Database on May 1, 2026, with the most recent update on May 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-31758 actively exploited?
CVE-2026-31758 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-2026-31758?
CVE-2026-31758 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-31758?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31758, 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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