CVE-2026-53322

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-26. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

vfio/pci: Clean up DMABUFs before disabling function

On device shutdown, make vfio_pci_core_close_device() call vfio_pci_dma_buf_cleanup() before the function is disabled via vfio_pci_core_disable(). This ensures that all access via DMABUFs is revoked before the function's BARs become inaccessible.

This fixes an issue where, if the function is disabled first, a tiny window exists in which the function's MSE is cleared and yet BARs could still be accessed via the DMABUF. The resources would also be freed and up for grabs by a different driver.

CVSS v3
8.8
EG Score
8.8(high)
EPSS
7.1%
KEV
Not listed

Published

June 26, 2026

Last Modified

July 6, 2026

Advisory Details (2)

Auto-updated Jun 28, 2026
No patch confirmed yet.
generic

vfio/pci: Clean up DMABUFs before disabling function - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d97708701434ce72968e771976aaf9d3438fcafd
generic

vfio/pci: Clean up DMABUFs before disabling function - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4f1000a30f67cf7d328059242776a858611d5ef9

Vendor Advisories for CVE-2026-53322(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 40× in last 7d / 48× 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.

  1. 2026-07-06 22:54 UTCEG score recompute
  2. 2026-07-06 22:54 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 11:40 UTCEG score recompute
  6. 2026-07-06 11:40 UTCGHSA enrichment
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-06 00:25 UTCEG score recompute
  10. 2026-07-06 00:25 UTCGHSA enrichment
  11. 2026-07-05 13:10 UTCEG score recompute
  12. 2026-07-05 13:10 UTCGHSA enrichment
  13. 2026-07-05 02:31 UTCEPSS rescore
  14. 2026-07-05 02:30 UTCEPSS rescore
  15. 2026-07-05 01:56 UTCEG score recompute
  16. 2026-07-05 01:56 UTCGHSA enrichment
  17. 2026-07-04 14:43 UTCEG score recompute
  18. 2026-07-04 14:43 UTCGHSA enrichment
  19. 2026-07-04 06:31 UTCEPSS rescore
  20. 2026-07-04 06:31 UTCEPSS rescore
  21. 2026-07-04 03:29 UTCEG score recompute
  22. 2026-07-04 03:29 UTCGHSA enrichment
  23. 2026-07-03 16:14 UTCEG score recompute
  24. 2026-07-03 16:14 UTCGHSA enrichment
  25. 2026-07-03 05:01 UTCEG score recompute
Show 23 more
  1. 2026-07-03 05:01 UTCGHSA enrichment
  2. 2026-07-02 17:47 UTCEG score recompute
  3. 2026-07-02 17:46 UTCGHSA enrichment
  4. 2026-07-02 06:33 UTCEG score recompute
  5. 2026-07-02 06:33 UTCGHSA enrichment
  6. 2026-07-01 19:16 UTCEG score recompute
  7. 2026-07-01 19:16 UTCGHSA enrichment
  8. 2026-07-01 15:07 UTCEPSS rescore
  9. 2026-07-01 08:02 UTCEG score recompute
  10. 2026-07-01 08:02 UTCGHSA enrichment
  11. 2026-06-30 23:22 UTCEPSS rescore
  12. 2026-06-30 20:48 UTCEG score recompute
  13. 2026-06-30 20:48 UTCGHSA enrichment
  14. 2026-06-30 09:35 UTCEG score recompute
  15. 2026-06-30 09:35 UTCGHSA enrichment
  16. 2026-06-29 22:20 UTCEG score recompute▲ 8.80
  17. 2026-06-29 22:20 UTCGHSA enrichment
  18. 2026-06-28 14:07 UTCEPSS rescore
  19. 2026-06-28 07:52 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  20. 2026-06-28 04:56 UTCEPSS rescore
  21. 2026-06-28 04:56 UTCEPSS rescore
  22. 2026-06-26 21:37 UTCEG score recompute
  23. 2026-06-26 21:37 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-53322?
CVE-2026-53322 is a high vulnerability published on June 26, 2026. In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Clean up DMABUFs before disabling function On device shutdown, make vfiopcicoreclosedevice() call vfiopcidmabufcleanup() before the function is disabled via vfiopcicore_disable(). This ensures that all access via DMABUFs…
When was CVE-2026-53322 disclosed?
CVE-2026-53322 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53322 actively exploited?
CVE-2026-53322 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53322?
CVE-2026-53322 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-53322?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53322, 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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