CVE-2026-64106

CRITICALPre-NVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

Score 9.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-19. a secondary CVSS source baseline 9.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.0Exploit: None knownExposed: 0

A fix is available — apply it.

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

KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits

Userspace can restore an ITS Device Table Entry whose Size field encodes more EventID bits than the virtual ITS supports. The live MAPD path rejects that state, but vgic_its_restore_dte() accepts it and stores the out-of-range value in dev->num_eventid_bits.

Reject restored DTEs with num_eventid_bits > VITS_TYPER_IDBITS before allocating the device. This mirrors the MAPD check and prevents the restored state from reaching vgic_its_restore_itt(), where the unchecked value can be converted into an oversized scan_its_table() range.

CVSS v3
9.0
EG Score
9.0(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity90% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

July 19, 2026

Last Modified

August 12, 2026

Advisory Details (6)

Auto-updated Jul 20, 2026
No patch confirmed yet.
generic

KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9ce754ed8e7ab4e3999767ce1505f85c449ccb07
generic

KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8bcd15b690a390241179516af1b6ae49ebfd9d95
generic

KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0680f511926589206f81f57f76ce131d7741a316
generic

KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b94538186a3eae3763b8f96dacd610920a865aa7
generic

KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dab9f93251b2c86a033de6098d0c73afddd55d4a
generic

KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1716b7fea2ead941a0dfac06c4504a3437cdf00d

Vendor Advisories for CVE-2026-64106(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-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) @ resolute2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-30ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ 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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (496 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
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 58× in last 7d / 346× 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 416 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-64106?
CVE-2026-64106 is a critical vulnerability published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Reject restored DTE with out-of-range numeventidbits Userspace can restore an ITS Device Table Entry whose Size field encodes more EventID bits than the virtual ITS supports. The live MAPD path rejects that…
When was CVE-2026-64106 disclosed?
CVE-2026-64106 was first published in the National Vulnerability Database on July 19, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64106 actively exploited?
CVE-2026-64106 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 95.7% of all scored CVEs.
What is the CVSS score of CVE-2026-64106?
CVE-2026-64106 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2026-64106?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64106, 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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