CVE-2026-53286

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-26. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

idpf: fix double free and use-after-free in aux device error paths

When auxiliary_device_add() fails in idpf_plug_vport_aux_dev() or idpf_plug_core_aux_dev(), the err_aux_dev_add label calls auxiliary_device_uninit() and falls through to err_aux_dev_init. The uninit call will trigger put_device(), which invokes the release callback (idpf_vport_adev_release / idpf_core_adev_release) that frees iadev. The fall-through then reads adev->id from the freed iadev for ida_free() and double-frees iadev with kfree().

Free the IDA slot and clear the back-pointer before uninit, while adev is still valid, then return immediately.

Commit 65637c3a1811 ("idpf: fix UAF in RDMA core aux dev deinitialization") fixed the same use-after-free in the matching unplug path in this file but missed both probe error paths.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

June 26, 2026

Last Modified

July 8, 2026

Advisory Details (3)

Auto-updated Jul 8, 2026
No patch confirmed yet.
generic

idpf: fix double free and use-after-free in aux device error paths - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f319de7074e1728a9f9ff7134257360c694ec2b2
generic

idpf: fix double free and use-after-free in aux device error paths - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/722b91d5086a249318c9d0e2b36aeac80ba8c808
generic

idpf: fix double free and use-after-free in aux device error paths - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6c77b9510829a424d1b74409b7db9456e3522871

Vendor Advisories for CVE-2026-53286(1)

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

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-25ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-25ubuntu

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

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (137 versions)7.0.10-1—

Weakness Classification(1)

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

All Vendor Advisories

(8)

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 31× in last 7d / 147× 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 214 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53286?
CVE-2026-53286 is a high vulnerability published on June 26, 2026. In the Linux kernel, the following vulnerability has been resolved: idpf: fix double free and use-after-free in aux device error paths When auxiliarydeviceadd() fails in idpfplugvportauxdev() or idpfplugcoreauxdev(), the errauxdev_add label calls auxiliarydeviceuninit() and falls through to…
When was CVE-2026-53286 disclosed?
CVE-2026-53286 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on July 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53286 actively exploited?
CVE-2026-53286 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 93.7% of all scored CVEs.
What is the CVSS score of CVE-2026-53286?
CVE-2026-53286 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-53286?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53286, 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

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