CVE-2026-46009

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-27. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

A fix is available — apply it.

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

PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown

epf_ntb_epc_destroy() duplicates the teardown that the caller is supposed to do later. This leads to an oops when .allow_link fails or when .drop_link is performed. Remove the helper.

Also drop pci_epc_put(). EPC device refcounting is tied to configfs EPC group lifetime, and pci_epc_put() in the .drop_link path is sufficient.

CVSS v3
5.5
EG Score
5.5(medium)
EPSS
2.4%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 16, 2026

Advisory Details (7)

Auto-updated Jun 16, 2026
No patch confirmed yet.
generic

PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e813c95e4c8edd31599081e6356e20ada30e266d
generic

PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c72f6a7ea638f95c486a5cfd86e567b646027687
generic

PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c3029721b84f59e790285ad27544ed5d3cb0f2a6
generic

PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/756ca5e7ed22d9045bb4de4c981f9149278d5cd3
generic

PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/72099f015d3c77bf2eb703d1aab113bd7a60915a
generic

PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/65fc57c8b8f0b31be62be291cb1bb01755cec85d
generic

PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3446beddba450c8d6f9aca2f028712ac527fead3

Vendor Advisories for CVE-2026-46009(2)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-07-11ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-07-11ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-07-11ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-07-11ubuntu

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.

Additional Vendor Advisories

(4)

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 10× in last 7d / 63× 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 105 total refreshes for this CVE.

  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 02:00 UTCEPSS rescore
  3. 2026-07-13 22:30 UTCEPSS rescore
  4. 2026-07-13 06:13 UTCEPSS rescore
  5. 2026-07-12 05:46 UTCEPSS rescore
  6. 2026-07-11 23:50 UTCEG score recompute
  7. 2026-07-11 23:50 UTCVendor advisory
  8. 2026-07-11 23:50 UTCGHSA enrichment
  9. 2026-07-11 08:27 UTCEPSS rescore
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-09 00:00 UTCEG score recompute
  12. 2026-07-09 00:00 UTCVendor advisory
  13. 2026-07-08 23:59 UTCGHSA enrichment
  14. 2026-07-08 15:16 UTCEPSS rescore
  15. 2026-07-07 13:46 UTCEPSS rescore
  16. 2026-07-06 16:27 UTCEPSS rescore
  17. 2026-07-06 02:23 UTCEPSS rescore
  18. 2026-07-05 02:30 UTCEPSS rescore
  19. 2026-07-04 06:31 UTCEPSS rescore
  20. 2026-07-01 15:07 UTCEPSS rescore
  21. 2026-07-01 10:47 UTCEG score recompute
  22. 2026-07-01 10:47 UTCVendor advisory
  23. 2026-07-01 10:47 UTCGHSA enrichment
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-29 14:22 UTCEG score recompute
Show 75 more
  1. 2026-06-29 14:22 UTCVendor advisory
  2. 2026-06-29 14:22 UTCGHSA enrichment
  3. 2026-06-29 14:06 UTCEPSS rescore
  4. 2026-06-29 14:06 UTCEPSS rescore
  5. 2026-06-28 14:07 UTCEPSS rescore
  6. 2026-06-28 05:34 UTCEG score recompute
  7. 2026-06-28 05:34 UTCVendor advisory
  8. 2026-06-28 05:33 UTCGHSA enrichment
  9. 2026-06-28 04:56 UTCEPSS rescore
  10. 2026-06-28 04:56 UTCEPSS rescore
  11. 2026-06-27 06:01 UTCEG score recompute
  12. 2026-06-27 06:01 UTCVendor advisory
  13. 2026-06-27 06:01 UTCGHSA enrichment
  14. 2026-06-27 03:08 UTCEPSS rescore
  15. 2026-06-26 02:33 UTCEG score recompute
  16. 2026-06-26 02:33 UTCVendor advisory
  17. 2026-06-26 02:33 UTCGHSA enrichment
  18. 2026-06-25 13:49 UTCEPSS rescore
  19. 2026-06-25 01:22 UTCEG score recompute
  20. 2026-06-25 01:22 UTCVendor advisory
  21. 2026-06-25 01:22 UTCGHSA enrichment
  22. 2026-06-24 14:05 UTCEPSS rescore
  23. 2026-06-23 21:33 UTCEPSS rescore
  24. 2026-06-23 21:33 UTCEPSS rescore
  25. 2026-06-22 14:25 UTCEPSS rescore
  26. 2026-06-22 14:25 UTCEPSS rescore
  27. 2026-06-21 14:56 UTCEPSS rescore
  28. 2026-06-21 14:56 UTCEPSS rescore
  29. 2026-06-21 01:59 UTCEPSS rescore
  30. 2026-06-21 01:59 UTCEPSS rescore
  31. 2026-06-19 19:26 UTCEPSS rescore
  32. 2026-06-19 19:26 UTCEPSS rescore
  33. 2026-06-18 17:52 UTCEPSS rescore
  34. 2026-06-18 17:52 UTCEPSS rescore
  35. 2026-06-17 17:53 UTCEPSS rescore
  36. 2026-06-17 11:18 UTCEG score recompute▲ 5.50
  37. 2026-06-17 11:18 UTCGHSA enrichment
  38. 2026-06-16 17:52 UTCEPSS rescore
  39. 2026-06-16 15:47 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  40. 2026-06-15 17:49 UTCEPSS rescore
  41. 2026-06-14 23:28 UTCMITRE cvelistV5
  42. 2026-06-14 17:41 UTCVendor advisory
  43. 2026-06-14 17:41 UTCGHSA enrichment
  44. 2026-06-13 23:00 UTCEPSS rescore
  45. 2026-06-12 23:12 UTCEPSS rescore
  46. 2026-06-12 23:12 UTCEPSS rescore
  47. 2026-06-12 00:04 UTCVendor advisory
  48. 2026-06-12 00:04 UTCGHSA enrichment
  49. 2026-06-11 14:00 UTCEPSS rescore
  50. 2026-06-10 22:18 UTCEPSS rescore
  51. 2026-06-10 13:22 UTCEPSS rescore
  52. 2026-06-10 13:22 UTCEPSS rescore
  53. 2026-06-09 06:27 UTCGHSA enrichment
  54. 2026-06-08 14:17 UTCEPSS rescore
  55. 2026-06-08 14:17 UTCEPSS rescore
  56. 2026-06-07 15:25 UTCEPSS rescore
  57. 2026-06-07 15:25 UTCEPSS rescore
  58. 2026-06-06 13:47 UTCEPSS rescore
  59. 2026-06-06 13:47 UTCEPSS rescore
  60. 2026-06-06 12:50 UTCGHSA enrichment
  61. 2026-06-05 22:47 UTCEPSS rescore
  62. 2026-06-05 06:10 UTCEPSS rescore
  63. 2026-06-05 06:10 UTCEPSS rescore
  64. 2026-06-04 13:12 UTCEPSS rescore
  65. 2026-06-04 13:12 UTCEPSS rescore
  66. 2026-06-03 19:13 UTCGHSA enrichment
  67. 2026-06-02 20:13 UTCEPSS rescore
  68. 2026-06-01 13:52 UTCEPSS rescore
  69. 2026-06-01 13:52 UTCEPSS rescore
  70. 2026-06-01 01:36 UTCEG score recompute
  71. 2026-06-01 01:36 UTCGHSA enrichment
  72. 2026-05-31 22:30 UTCEPSS rescore
  73. 2026-05-31 22:30 UTCEPSS rescore
  74. 2026-05-31 00:16 UTCEPSS rescore
  75. 2026-05-31 00:16 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-46009?
CVE-2026-46009 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown epfntbepc_destroy() duplicates the teardown that the caller is supposed to do later. This leads to an oops when .allow_link fails or when .drop_link is performed.…
When was CVE-2026-46009 disclosed?
CVE-2026-46009 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46009 actively exploited?
CVE-2026-46009 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46009?
CVE-2026-46009 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-46009?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46009, 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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