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
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

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
7.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100

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%
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

Published

June 26, 2026

Last Modified

July 8, 2026

Advisory Details (3)

Auto-updated Jul 8, 2026
Patch available.
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(10)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-09-23ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-09-23ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-09-23ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-23ubuntu
ubuntulinux-tools-azure-edge (7.0.0-1014.14~24.04.1) @ noble2026-09-23ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-23ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-23ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-23ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-23ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-09-23ubuntu

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 rangeFix by version rangeDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (141 versions)
  • every version up to 7.0.10-1: fixed in 7.0.10-1
—

Weakness Classification(1)

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

All Vendor Advisories

(10)

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 / 35× 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 270 total refreshes for this CVE.

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

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 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 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-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?
A fix for CVE-2026-53286 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-53286 are linked in the Vendor Advisories panel on this page.

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