CVE-2026-53280

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-26. 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
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

iommu: Fix NULL group->domain dereference in pci_dev_reset_iommu_done()

Local sashiko review pointed it out that group->domain could be NULL when a default domain fails to allocate during the first probe, which can crash at domain->ops->attach_dev dereference in __iommu_attach_device() invoked by pci_dev_reset_iommu_done().

pci_dev_reset_iommu_prepare() is fine as an old_domain pointer can be NULL.

Skip the re-attach in pci_dev_reset_iommu_done() to fix the bug.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

June 26, 2026

Last Modified

July 8, 2026

Advisory Details (2)

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

iommu: Fix NULL group->domain dereference in pci_dev_reset_iommu_done() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d769711fcddd005f1e654b3bde547140917fe696
generic

iommu: Fix NULL group->domain dereference in pci_dev_reset_iommu_done() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/17194cd0dd236e732d116d50840d795ca50ef196

Vendor Advisories for CVE-2026-53280(1)

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

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-09-06ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-06ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-06ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-06ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-06ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-09-06ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-09-06ubuntu

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 (140 versions)7.0.10-1—

Weakness Classification(1)

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

All Vendor Advisories

(7)

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 8× in last 7d / 71× 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 185 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53280?
CVE-2026-53280 is a medium vulnerability published on June 26, 2026. In the Linux kernel, the following vulnerability has been resolved: iommu: Fix NULL group->domain dereference in pcidevresetiommudone() Local sashiko review pointed it out that group->domain could be NULL when a default domain fails to allocate during the first probe, which can crash at…
When was CVE-2026-53280 disclosed?
CVE-2026-53280 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-2026-53280 actively exploited?
CVE-2026-53280 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 98.7% of all scored CVEs.
What is the CVSS score of CVE-2026-53280?
CVE-2026-53280 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53280?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53280, 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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