CVE-2026-63953

UNRATEDCVSS · not yet scoredTrending — 3 sources updated this week
—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS v2: —Exploit: None knownExposed: 0

A fix is available — apply it.

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

mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page

When migrate_vma_insert_huge_pmd_page() jumps to unlock_abort due to a PMD check failure, the pgtable allocated earlier via pte_alloc_one() is never freed, causing a memory leak.

Added free_abort label to release the pgtable in error path.

CVSS v3
—
EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
—
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

July 19, 2026

Last Modified

July 27, 2026

References (2)

Vendor Advisories for CVE-2026-63953(1)

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

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-30ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-30ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16~24.04.1) @ noble2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-30ubuntu

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 (138 versions)7.0.12-1—

All Vendor Advisories

(5)

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 9× in last 7d / 45× 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. 2026-08-30 02:55 UTCVendor advisory
  2. 2026-08-30 02:55 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-27 14:25 UTCEPSS rescore
  6. 2026-08-26 14:46 UTCEPSS rescore
  7. 2026-08-25 20:19 UTCVendor advisory
  8. 2026-08-25 20:19 UTCGHSA enrichment
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-23 00:19 UTCEPSS rescore
  11. 2026-08-22 21:53 UTCVendor advisory
  12. 2026-08-22 21:53 UTCGHSA enrichment
  13. 2026-08-21 23:49 UTCEPSS rescore
  14. 2026-08-20 22:55 UTCEPSS rescore
  15. 2026-08-20 00:09 UTCVendor advisory
  16. 2026-08-20 00:09 UTCGHSA enrichment
  17. 2026-08-19 17:04 UTCEPSS rescore
  18. 2026-08-18 13:48 UTCEPSS rescore
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-17 02:23 UTCVendor advisory
  21. 2026-08-17 02:23 UTCGHSA enrichment
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-15 01:30 UTCEPSS rescore
  24. 2026-08-14 04:39 UTCVendor advisory
  25. 2026-08-14 04:39 UTCGHSA enrichment
Show 51 more
  1. 2026-08-13 22:00 UTCEPSS rescore
  2. 2026-08-12 13:51 UTCEPSS rescore
  3. 2026-08-11 06:56 UTCVendor advisory
  4. 2026-08-11 06:56 UTCGHSA enrichment
  5. 2026-08-11 00:00 UTCEPSS rescore
  6. 2026-08-09 13:47 UTCEPSS rescore
  7. 2026-08-08 16:37 UTCEPSS rescore
  8. 2026-08-08 09:13 UTCVendor advisory
  9. 2026-08-08 09:13 UTCGHSA enrichment
  10. 2026-08-06 13:47 UTCEPSS rescore
  11. 2026-08-05 19:17 UTCEPSS rescore
  12. 2026-08-05 19:17 UTCEPSS rescore
  13. 2026-08-05 11:30 UTCVendor advisory
  14. 2026-08-05 11:29 UTCGHSA enrichment
  15. 2026-08-04 15:10 UTCEPSS rescore
  16. 2026-08-03 10:36 UTCEPSS rescore
  17. 2026-08-02 13:42 UTCVendor advisory
  18. 2026-08-02 13:42 UTCGHSA enrichment
  19. 2026-08-02 02:27 UTCEPSS rescore
  20. 2026-08-01 04:16 UTCEPSS rescore
  21. 2026-07-30 16:28 UTCEPSS rescore
  22. 2026-07-30 15:58 UTCEG score recompute
  23. 2026-07-30 15:58 UTCVendor advisory
  24. 2026-07-30 15:58 UTCGHSA enrichment
  25. 2026-07-30 01:30 UTCEPSS rescore
  26. 2026-07-30 01:30 UTCEPSS rescore
  27. 2026-07-28 15:37 UTCEPSS rescore
  28. 2026-07-27 17:50 UTCGHSA enrichment
  29. 2026-07-27 14:14 UTCEPSS rescore
  30. 2026-07-26 14:54 UTCEPSS rescore
  31. 2026-07-26 14:54 UTCEPSS rescore
  32. 2026-07-26 10:59 UTCEG score recompute
  33. 2026-07-26 10:59 UTCVendor advisory
  34. 2026-07-26 10:59 UTCGHSA enrichment
  35. 2026-07-25 14:18 UTCEPSS rescore
  36. 2026-07-25 14:18 UTCEPSS rescore
  37. 2026-07-24 14:18 UTCEPSS rescore
  38. 2026-07-24 14:18 UTCEPSS rescore
  39. 2026-07-23 14:18 UTCEPSS rescore
  40. 2026-07-23 14:18 UTCEPSS rescore
  41. 2026-07-23 03:22 UTCEG score recompute
  42. 2026-07-22 14:08 UTCEPSS rescore
  43. 2026-07-22 14:08 UTCEPSS rescore
  44. 2026-07-21 15:25 UTCEPSS rescore
  45. 2026-07-21 15:25 UTCEPSS rescore
  46. 2026-07-20 17:34 UTCEG score recompute
  47. 2026-07-20 17:34 UTCGHSA enrichment
  48. 2026-07-20 17:08 UTCEPSS rescore
  49. 2026-07-19 17:49 UTCNVD update
  50. 2026-07-19 15:22 UTCEG score recompute
  51. 2026-07-19 15:19 UTCMITRE cvelistV5first tracked

Frequently asked(4)

What is CVE-2026-63953?
CVE-2026-63953 is a publicly disclosed vulnerability published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: mm/migratedevice: fix pgtable leak in migratevmainserthugepmdpage When migratevmainserthugepmdpage() jumps to unlockabort due to a PMD check failure, the pgtable allocated earlier via pteallocone() is never freed, causing a memory…
When was CVE-2026-63953 disclosed?
CVE-2026-63953 was first published in the National Vulnerability Database on July 19, 2026, with the most recent update on July 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-63953 actively exploited?
CVE-2026-63953 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 91.4% of all scored CVEs.
How do I remediate CVE-2026-63953?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63953, 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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