CVE-2026-64475

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-25. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

vfio/pci: Release the VGA arbiter client on register_device() failure

The re-order in the Fixes commit below displaced vfio_pci_vga_init() as the last failure point of what is now vfio_pci_core_register_device() without introducing an unwind for the VGA arbiter registration.

In current kernels this is mostly benign because vfio_pci_set_decode() only uses pci_dev state, but the original failure path could leave a callback with a freed vdev cookie. The stale registration also becomes unsafe again once the callback follows drvdata to the vfio device.

Add the required VGA unwind callout.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

July 25, 2026

Last Modified

August 17, 2026

Advisory Details (8)

Auto-updated Jul 27, 2026
No patch confirmed yet.
generic

vfio/pci: Release the VGA arbiter client on register_device() failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ef4c38d30b3744e89eb5048218904bb629ea8d47
generic

vfio/pci: Release the VGA arbiter client on register_device() failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/daedde7f024ecf88bc8e832ed40cf2c795f0796a
generic

vfio/pci: Release the VGA arbiter client on register_device() failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9e0a3f642e607848669235f5069f35640abbfc88
generic

vfio/pci: Release the VGA arbiter client on register_device() failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8d65decde9afd2bd78bcfffdc0df73b82a0b5509
generic

vfio/pci: Release the VGA arbiter client on register_device() failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/52adb2dff7ce3d8430e2bdc5988b618a430def85
generic

vfio/pci: Release the VGA arbiter client on register_device() failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/42d758a09d2c46c42357ecde9a5492f015bde2e5
generic

vfio/pci: Release the VGA arbiter client on register_device() failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/278a5659c391fe5afe5f9ce1bad1fd24e90144f1
generic

vfio/pci: Release the VGA arbiter client on register_device() failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0f2a35a0c7ea7da347b814750eaa78adf3582381

Vendor Advisories for CVE-2026-64475(2)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-15ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1013.13) @ resolute2026-09-15ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-31.31) @ resolute2026-09-15ubuntu

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

(6 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (55 versions)5.10.262-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.177-1~deb11u1 (22 versions)6.1.180-1~deb11u1—
Debian:12(2)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (55 versions)6.1.180-1—
linux-6.12—6.12.100-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.95-1~bpo12+1 (30 versions)6.12.96-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (158 versions)7.1.4-1—

Additional Vendor Advisories

(3)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 28× in last 7d / 130× 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 242 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-64475?
CVE-2026-64475 is a high vulnerability published on July 25, 2026. In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Release the VGA arbiter client on register_device() failure The re-order in the Fixes commit below displaced vfiopcivga_init() as the last failure point of what is now vfiopcicoreregisterdevice() without introducing an…
When was CVE-2026-64475 disclosed?
CVE-2026-64475 was first published in the National Vulnerability Database on July 25, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64475 actively exploited?
CVE-2026-64475 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 96.4% of all scored CVEs.
What is the CVSS score of CVE-2026-64475?
CVE-2026-64475 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-64475?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64475, 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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