CVE-2025-68779

UNRATEDCVSS · not yet scored
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EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS v2: —Exploit: 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/mlx5e: Avoid unregistering PSP twice

PSP is unregistered twice in: _mlx5e_remove -> mlx5e_psp_unregister mlx5e_nic_cleanup -> mlx5e_psp_unregister

This leads to a refcount underflow in some conditions: ------------[ cut here ]------------ refcount_t: underflow; use-after-free. WARNING: CPU: 2 PID: 1694 at lib/refcount.c:28 refcount_warn_saturate+0xd8/0xe0 [...] mlx5e_psp_unregister+0x26/0x50 [mlx5_core] mlx5e_nic_cleanup+0x26/0x90 [mlx5_core] mlx5e_remove+0xe6/0x1f0 [mlx5_core] auxiliary_bus_remove+0x18/0x30 device_release_driver_internal+0x194/0x1f0 bus_remove_device+0xc6/0x130 device_del+0x159/0x3c0 mlx5_rescan_drivers_locked+0xbc/0x2a0 [mlx5_core] [...]

Do not directly remove psp from the _mlx5e_remove path, the PSP cleanup happens as part of profile cleanup.

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
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EG Risk
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EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

January 13, 2026

Last Modified

June 17, 2026

References (2)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 6.18.3—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 9× 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 125 total refreshes for this CVE.

  1. 2026-08-01 04:15 UTCEPSS rescore
  2. 2026-07-30 16:27 UTCEPSS rescore
  3. 2026-07-30 01:30 UTCEPSS rescore
  4. 2026-07-27 14:13 UTCEPSS rescore
  5. 2026-07-27 01:39 UTCOSV refresh
  6. 2026-07-26 14:54 UTCEPSS rescore
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  11. 2026-07-23 14:18 UTCEPSS rescore
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  13. 2026-07-23 03:02 UTCEG score recompute
  14. 2026-07-22 14:08 UTCEPSS rescore
  15. 2026-07-21 15:24 UTCEPSS rescore
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  1. 2026-07-15 01:59 UTCEPSS rescore
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  5. 2026-07-11 08:27 UTCEPSS rescore
  6. 2026-07-11 08:27 UTCEPSS rescore
  7. 2026-07-09 20:17 UTCOSV refresh
  8. 2026-07-09 19:10 UTCEPSS rescore
  9. 2026-07-08 15:15 UTCEPSS rescore
  10. 2026-07-07 13:46 UTCEPSS rescore
  11. 2026-07-06 16:27 UTCEPSS rescore
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  22. 2026-06-28 14:07 UTCEPSS rescore
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  24. 2026-06-28 04:56 UTCEPSS rescore
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  26. 2026-06-27 03:08 UTCEPSS rescore
  27. 2026-06-25 13:49 UTCEPSS rescore
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  29. 2026-06-24 14:05 UTCEPSS rescore
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  31. 2026-06-23 21:32 UTCEPSS rescore
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  34. 2026-06-21 14:56 UTCEPSS rescore
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  36. 2026-06-21 06:05 UTCOSV refresh
  37. 2026-06-21 01:59 UTCEPSS rescore
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  39. 2026-06-19 19:25 UTCEPSS rescore
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  41. 2026-06-18 17:52 UTCEPSS rescore
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  44. 2026-06-15 17:48 UTCEPSS rescore
  45. 2026-06-14 23:18 UTCEPSS rescore
  46. 2026-06-13 23:00 UTCEPSS rescore
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  48. 2026-06-12 23:12 UTCEPSS rescore
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  50. 2026-06-11 14:00 UTCEPSS rescore
  51. 2026-06-10 22:18 UTCEPSS rescore
  52. 2026-06-10 13:22 UTCEPSS rescore
  53. 2026-06-08 14:17 UTCEPSS rescore
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  55. 2026-06-07 15:24 UTCEPSS rescore
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  57. 2026-06-06 13:47 UTCEPSS rescore
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  65. 2026-06-02 20:13 UTCEPSS rescore
  66. 2026-06-01 18:57 UTCOSV refresh
  67. 2026-06-01 13:51 UTCEPSS rescore
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  69. 2026-05-31 22:30 UTCEPSS rescore
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  73. 2026-05-29 13:44 UTCEPSS rescore
  74. 2026-05-29 13:44 UTCEPSS rescore
  75. 2026-05-28 13:44 UTCEPSS rescore

Frequently asked(4)

What is CVE-2025-68779?
CVE-2025-68779 is a publicly disclosed vulnerability published on January 13, 2026. In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Avoid unregistering PSP twice PSP is unregistered twice in: mlx5eremove -> mlx5epspunregister mlx5eniccleanup -> mlx5epspunregister This leads to a refcount underflow in some conditions: ------------[ cut here…
When was CVE-2025-68779 disclosed?
CVE-2025-68779 was first published in the National Vulnerability Database on January 13, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-68779 actively exploited?
CVE-2025-68779 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 94.8% of all scored CVEs.
How do I remediate CVE-2025-68779?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-68779, 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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