CVE-2026-64334

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-07-25. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
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:

USB: serial: digi_acceleport: fix hard lockup on disconnect

If submitting the OOB write urb fails persistently (e.g if the device is being disconnected) the driver would loop indefinitely with interrupts disabled.

Check for urb submission errors when sending OOB commands to avoid hanging if, for example, open(), set_termios() or close() races with a physical disconnect.

This is issue was flagged by Sashiko when reviewing an unrelated change to the driver.

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
1%
KEV
Not listed

Published

July 25, 2026

Last Modified

September 3, 2026

Advisory Details (8)

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

USB: serial: digi_acceleport: fix hard lockup on disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bcfeae431db9986c2b313e6a760f2ac8df61e138
generic

USB: serial: digi_acceleport: fix hard lockup on disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/79bc131df0e50f8f663c1fdbbe952aaf193a8d39
generic

USB: serial: digi_acceleport: fix hard lockup on disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6e51147c2744d15730084dc89cc99180d3de4184
generic

USB: serial: digi_acceleport: fix hard lockup on disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6a8592ace932081ea11aea41c460a1ca0f6344a4
generic

USB: serial: digi_acceleport: fix hard lockup on disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5c1ea24b53bf3bfb859f0a05573997487975da23
generic

USB: serial: digi_acceleport: fix hard lockup on disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5a82d842e8c35227d7227f19e5e654df1451782c
generic

USB: serial: digi_acceleport: fix hard lockup on disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2b7dc482f859f2d027db07ff0efc1c5df5b3451a
generic

USB: serial: digi_acceleport: fix hard lockup on disconnect - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2067b3838da6e4af03bae3630414193188d754b2

Vendor Advisories for CVE-2026-64334(2)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-31.31) @ resolute2026-09-18ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1013.13) @ resolute2026-09-18ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1018.18~24.04.1) @ noble2026-09-18ubuntu

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

(6 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (55 versions)5.10.262-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.177-1~deb11u1 (22 versions)6.1.180-1~deb11u1—
Debian:12(2)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (55 versions)6.1.180-1—
linux-6.12—6.12.100-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.95-1~bpo12+1 (30 versions)6.12.96-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (158 versions)7.1.4-1—

Weakness Classification(1)

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

All Vendor Advisories

(4)

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 13× in last 7d / 57× 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 101 total refreshes for this CVE.

  1. 2026-09-18 02:49 UTCEG score recompute
  2. 2026-09-18 02:49 UTCVendor advisory
  3. 2026-09-18 02:49 UTCGHSA enrichment
  4. 2026-09-16 14:08 UTCEPSS rescore
  5. 2026-09-16 11:57 UTCEG score recompute
  6. 2026-09-16 11:57 UTCVendor advisory
  7. 2026-09-16 11:56 UTCGHSA enrichment
  8. 2026-09-16 05:15 UTCEPSS rescore
  9. 2026-09-15 09:26 UTCEG score recompute
  10. 2026-09-15 09:26 UTCVendor advisory
  11. 2026-09-15 09:26 UTCGHSA enrichment
  12. 2026-09-13 21:33 UTCVendor advisory
  13. 2026-09-13 21:33 UTCGHSA enrichment
  14. 2026-09-12 17:41 UTCEG score recompute
  15. 2026-09-12 17:41 UTCVendor advisory
  16. 2026-09-12 17:41 UTCGHSA enrichment
  17. 2026-09-11 16:27 UTCEG score recompute
  18. 2026-09-11 16:27 UTCVendor advisory
  19. 2026-09-11 16:27 UTCGHSA enrichment
  20. 2026-09-11 14:53 UTCEPSS rescore
  21. 2026-09-11 09:37 UTCEPSS rescore
  22. 2026-09-10 13:27 UTCEG score recompute
  23. 2026-09-10 13:27 UTCVendor advisory
  24. 2026-09-10 13:27 UTCGHSA enrichment
  25. 2026-09-09 08:38 UTCEG score recompute
Show 75 more
  1. 2026-09-09 08:38 UTCVendor advisory
  2. 2026-09-09 08:38 UTCGHSA enrichment
  3. 2026-09-08 22:01 UTCEPSS rescore
  4. 2026-09-07 21:17 UTCEG score recompute
  5. 2026-09-07 21:17 UTCVendor advisory
  6. 2026-09-07 21:17 UTCGHSA enrichment
  7. 2026-09-07 16:01 UTCEPSS rescore
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-05 19:21 UTCEG score recompute
  10. 2026-09-05 19:21 UTCGHSA enrichment
  11. 2026-09-05 15:31 UTCEPSS rescore
  12. 2026-09-04 17:35 UTCEG score recompute
  13. 2026-09-04 17:35 UTCGHSA enrichment
  14. 2026-09-04 05:07 UTCEPSS rescore
  15. 2026-09-03 16:17 UTCEG score recompute▲ 5.50
  16. 2026-09-03 16:17 UTCGHSA enrichment
  17. 2026-09-03 16:12 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  18. 2026-09-02 14:12 UTCEPSS rescore
  19. 2026-09-01 23:13 UTCGHSA enrichment
  20. 2026-09-01 13:54 UTCEPSS rescore
  21. 2026-09-01 04:40 UTCEPSS rescore
  22. 2026-08-30 19:17 UTCEPSS rescore
  23. 2026-08-30 01:22 UTCEPSS rescore
  24. 2026-08-30 00:10 UTCGHSA enrichment
  25. 2026-08-28 21:42 UTCEPSS rescore
  26. 2026-08-26 14:47 UTCEPSS rescore
  27. 2026-08-26 00:00 UTCGHSA enrichment
  28. 2026-08-25 13:49 UTCEPSS rescore
  29. 2026-08-23 01:46 UTCGHSA enrichment
  30. 2026-08-23 00:19 UTCEPSS rescore
  31. 2026-08-21 23:49 UTCEPSS rescore
  32. 2026-08-20 22:55 UTCEPSS rescore
  33. 2026-08-20 03:33 UTCGHSA enrichment
  34. 2026-08-19 17:04 UTCEPSS rescore
  35. 2026-08-18 13:48 UTCEPSS rescore
  36. 2026-08-17 13:47 UTCEPSS rescore
  37. 2026-08-17 05:25 UTCNVD update
  38. 2026-08-17 05:20 UTCGHSA enrichment
  39. 2026-08-17 05:05 UTCMITRE cvelistV5
  40. 2026-08-16 14:56 UTCEPSS rescore
  41. 2026-08-15 01:30 UTCEPSS rescore
  42. 2026-08-14 13:21 UTCGHSA enrichment
  43. 2026-08-13 22:00 UTCEPSS rescore
  44. 2026-08-12 13:51 UTCEPSS rescore
  45. 2026-08-11 15:08 UTCGHSA enrichment
  46. 2026-08-09 17:56 UTCGHSA enrichment
  47. 2026-08-09 13:47 UTCEPSS rescore
  48. 2026-08-08 16:37 UTCEPSS rescore
  49. 2026-08-06 19:43 UTCGHSA enrichment
  50. 2026-08-06 13:47 UTCEPSS rescore
  51. 2026-08-05 19:17 UTCEPSS rescore
  52. 2026-08-05 19:17 UTCEPSS rescore
  53. 2026-08-04 15:10 UTCEPSS rescore
  54. 2026-08-04 10:39 UTCEPSS rescore
  55. 2026-08-03 21:31 UTCGHSA enrichment
  56. 2026-08-03 10:36 UTCEPSS rescore
  57. 2026-08-02 02:27 UTCEPSS rescore
  58. 2026-08-01 04:16 UTCEPSS rescore
  59. 2026-07-31 23:19 UTCEG score recompute
  60. 2026-07-31 23:19 UTCGHSA enrichment
  61. 2026-07-30 16:28 UTCEPSS rescore
  62. 2026-07-30 01:30 UTCEPSS rescore
  63. 2026-07-30 01:30 UTCEPSS rescore
  64. 2026-07-29 01:03 UTCEG score recompute
  65. 2026-07-29 01:03 UTCGHSA enrichment
  66. 2026-07-28 15:37 UTCEPSS rescore
  67. 2026-07-27 14:14 UTCEPSS rescore
  68. 2026-07-26 14:54 UTCEPSS rescore
  69. 2026-07-26 14:54 UTCEPSS rescore
  70. 2026-07-26 02:50 UTCEG score recompute
  71. 2026-07-26 02:50 UTCGHSA enrichment
  72. 2026-07-25 14:18 UTCEPSS rescore
  73. 2026-07-25 14:18 UTCEPSS rescore
  74. 2026-07-25 10:39 UTCNVD update
  75. 2026-07-25 09:37 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-64334?
CVE-2026-64334 is a medium vulnerability published on July 25, 2026. In the Linux kernel, the following vulnerability has been resolved: USB: serial: digi_acceleport: fix hard lockup on disconnect If submitting the OOB write urb fails persistently (e.g if the device is being disconnected) the driver would loop indefinitely with interrupts disabled. Check for urb…
When was CVE-2026-64334 disclosed?
CVE-2026-64334 was first published in the National Vulnerability Database on July 25, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64334 actively exploited?
CVE-2026-64334 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 99.3% of all scored CVEs.
What is the CVSS score of CVE-2026-64334?
CVE-2026-64334 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-64334?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64334, 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-2026-64334

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