CVE-2025-39908

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2025-10-01. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 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

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:

net: dev_ioctl: take ops lock in hwtstamp lower paths

ndo hwtstamp callbacks are expected to run under the per-device ops lock. Make the lower get/set paths consistent with the rest of ndo invocations.

Kernel log: WARNING: CPU: 13 PID: 51364 at ./include/net/netdev_lock.h:70 __netdev_update_features+0x4bd/0xe60 ... RIP: 0010:__netdev_update_features+0x4bd/0xe60 ... Call Trace:

netdev_update_features+0x1f/0x60 mlx5_hwtstamp_set+0x181/0x290 [mlx5_core] mlx5e_hwtstamp_set+0x19/0x30 [mlx5_core] dev_set_hwtstamp_phylib+0x9f/0x220 dev_set_hwtstamp_phylib+0x9f/0x220 dev_set_hwtstamp+0x13d/0x240 dev_ioctl+0x12f/0x4b0 sock_ioctl+0x171/0x370 __x64_sys_ioctl+0x3f7/0x900 ? __sys_setsockopt+0x69/0xb0 do_syscall_64+0x6f/0x2e0 entry_SYSCALL_64_after_hwframe+0x4b/0x53 ...

.... ---[ end trace 0000000000000000 ]---

Note that the mlx5_hwtstamp_set and mlx5e_hwtstamp_set functions shown in the trace come from an in progress patch converting the legacy ioctl to ndo_hwtstamp_get/set and are not present in mainline.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

October 1, 2025

Last Modified

August 5, 2026

Advisory Details (2)

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

net: dev_ioctl: take ops lock in hwtstamp lower paths - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/686cab5a18e443e1d5f2abb17bed45837836425f
generic

net: dev_ioctl: take ops lock in hwtstamp lower paths - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2d92fa0cdc02291de57f72170e8b60cef0cf5372

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 6.16.8—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.

Data Freshness Timeline

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

Related CVEs(same product)

Frequently asked(5)

What is CVE-2025-39908?
CVE-2025-39908 is a medium vulnerability published on October 1, 2025. In the Linux kernel, the following vulnerability has been resolved: net: dev_ioctl: take ops lock in hwtstamp lower paths ndo hwtstamp callbacks are expected to run under the per-device ops lock. Make the lower get/set paths consistent with the rest of ndo invocations. Kernel log: WARNING: CPU: 13…
When was CVE-2025-39908 disclosed?
CVE-2025-39908 was first published in the National Vulnerability Database on October 1, 2025, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-39908 actively exploited?
CVE-2025-39908 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 97.4% of all scored CVEs.
What is the CVSS score of CVE-2025-39908?
CVE-2025-39908 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2025-39908?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-39908, 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

Explore the affected products and dependency analysis for CVE-2025-39908

Explore →

Is Your Infrastructure Affected by CVE-2025-39908?

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

Start Free Scan →Browse All CVEs