CVE-2025-68312

UNRATEDCVSS · not yet scored

Also known asEUVD-2025-203757 (ENISA EUVD) · GHSA-g57h-pwpg-2849 (GitHub Security Advisories)Source: ENISA EUVD

—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS v2: —Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

usbnet: Prevents free active kevent

The root cause of this issue are:

  • When probing the usbnet device, executing usbnet_link_change(dev, 0, 0);
put the kevent work in global workqueue. However, the kevent has not yet been scheduled when the usbnet device is unregistered. Therefore, executing free_netdev() results in the "free active object (kevent)" error reported here.
  • Another factor is that when calling usbnet_disconnect()->unregister_netdev(),
if the usbnet device is up, ndo_stop() is executed to cancel the kevent. However, because the device is not up, ndo_stop() is not executed.

The solution to this problem is to cancel the kevent before executing free_netdev().

CVSS v3
—
EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
—
EG Risk
—
EPSS PROB
0.2%
EPSS %ILE
9th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

EG Severity
Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
No SSVC decision: EchelonGraph has not assessed this CVECISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the BOD 26-04 block below.

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

December 16, 2025

Last Modified

October 14, 2026

References (8)

Patch Availability(26)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-oem-6.17 (6.17.0-1011.11) @ noble2026-05-21ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-14.14) @ questing2026-05-21ubuntu
ubuntulinux-tools-gcp-64k-6.17 (6.17.0-1007.7) @ questing2026-05-21ubuntu
ubuntulinux-tools-oracle-64k-6.17 (6.17.0-1007.7) @ questing2026-05-21ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1008.8) @ questing2026-05-21ubuntu
ubuntulinux-virtual-6.8 (6.8.0-106.106) @ noble2026-05-21ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1067 (5.15.0-1067.71) @ jammy2026-05-21ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1049.52.1) @ noble2026-05-21ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1052.55+fips1) @ noble2026-05-21ubuntu
ubuntulinux-tools-gcp-fips-5.15 (5.15.0.1103.93) @ jammy2026-05-21ubuntu
ubuntulinux-tools-gke-5.15 (5.15.0.1099.98) @ jammy2026-05-21ubuntu
ubuntulinux-tools-realtime-5.15 (5.15.0.1102.106) @ jammy2026-05-21ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1094.98) @ jammy2026-05-21ubuntu
ubuntulinux-tools-nvidia-tegra-igx-rt-5.15 (5.15.0.1044.46) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1051.57) @ noble2026-05-21ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1045.46) @ noble2026-05-21ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1050.53~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1051.57~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2040.41) @ noble2026-05-21ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1110.119~20.04.1) @ focal2026-05-21ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1097.95) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1052.58+fips1) @ noble2026-05-21ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1109.94) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1109.107) @ jammy2026-05-21ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1029.30) @ noble2026-05-21ubuntu
linuxKernel @ 5.4.302 (fixes >=0)—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

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (47 versions)
  • every version up to 5.10.247-1: fixed in 5.10.247-1
—
linux-6.16.1.106-3~deb11u1 ... 6.1.158-1~deb11u1 (13 versions)
  • every version up to 6.1.159-1~deb11u1: fixed in 6.1.159-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (45 versions)
  • every version up to 6.1.159-1: fixed in 6.1.159-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.63-1~bpo12+1 (8 versions)
  • every version up to 6.12.63-1: fixed in 6.12.63-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.17.8-1~bpo13+1 (79 versions)
  • every version up to 6.17.8-1: fixed in 6.17.8-1
—

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 7× in last 7d / 39× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 233 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 134 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-06 16:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  2. 2026-11-05 16:36 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  3. 2026-11-04 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  4. 2026-11-03 16:45 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  5. 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  6. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  7. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  8. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  9. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  10. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  11. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  12. 2026-10-27 13:55 UTCOSV refresh
  13. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  14. 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  15. 2026-10-25 16:05 UTCEG score recompute
  16. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  17. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  18. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  19. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  20. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  21. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  22. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  23. 2026-10-18 05:17 UTCEG score recompute
  24. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  25. 2026-10-16 16:39 UTCEPSS rescoreEPSS 0.2% · 8th percentile
Show 74 more
  1. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-14 18:44 UTCGHSA enrichmentGHSA-g57h-pwpg-2849
  3. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  4. 2026-10-14 16:25 UTCNVD update
  5. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-10-12 16:47 UTCEG score recompute
  7. 2026-10-11 20:22 UTCEG score recompute
  8. 2026-10-11 18:34 UTCEG score recompute
  9. 2026-10-11 15:08 UTCEG score recompute
  10. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  15. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  16. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  17. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  18. 2026-10-03 17:19 UTCOSV refresh
  19. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  20. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  21. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  22. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  23. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  24. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  25. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  26. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  27. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  28. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  29. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  30. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  31. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  32. 2026-09-15 03:10 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  33. 2026-09-14 07:50 UTCOSV refresh
  34. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  35. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  36. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  37. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  38. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  39. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  40. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  41. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  42. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  43. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  44. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  45. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  46. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  47. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  48. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  49. 2026-08-26 09:13 UTCOSV refresh
  50. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  51. 2026-08-24 14:16 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  52. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  53. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  54. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  55. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  56. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  57. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  58. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  59. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  60. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  61. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  62. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  63. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  64. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  65. 2026-08-09 23:34 UTCVendor advisory
  66. 2026-08-09 23:34 UTCGHSA enrichmentGHSA-g57h-pwpg-2849
  67. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  68. 2026-08-08 16:36 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  69. 2026-08-07 16:27 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  70. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  71. 2026-08-06 08:53 UTCEG score recompute
  72. 2026-08-06 08:53 UTCVendor advisory
  73. 2026-08-06 08:53 UTCGHSA enrichmentGHSA-g57h-pwpg-2849
  74. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.2% · 7th percentile

Related CVEs(same vendor)

Frequently asked(4)

What is CVE-2025-68312?
CVE-2025-68312 is a vulnerability whose severity is not yet rated; its CVE record was published on December 16, 2025. In the Linux kernel, the following vulnerability has been resolved: usbnet: Prevents free active kevent The root cause of this issue are: 1. When probing the usbnet device, executing usbnet_link_change(dev, 0, 0); put the kevent work in global workqueue. However, the kevent has not yet been…
When was the CVE record for CVE-2025-68312 published?
The CVE record for CVE-2025-68312 was published on December 16, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 14, 2026; the record at its source may have been updated since.
Is CVE-2025-68312 actively exploited?
CVE-2025-68312 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
How do I remediate CVE-2025-68312?
A fix for CVE-2025-68312 is available: update to the fixed version the vendor names in its advisory.

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