CVE-2026-43248

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-06. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

vhost: move vdpa group bound check to vhost_vdpa

Remove duplication by consolidating these here. This reduces the posibility of a parent driver missing them.

While we're at it, fix a bug in vdpa_sim where a valid ASID can be assigned to a group equal to ngroups, causing an out of bound write.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

May 6, 2026

Last Modified

August 5, 2026

Advisory Details (4)

Auto-updated May 11, 2026
No patch confirmed yet.
generic

vhost: move vdpa group bound check to vhost_vdpa - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ddb57354634b6ba851b79da45f1de42c646f27d0
generic

vhost: move vdpa group bound check to vhost_vdpa - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cd025c1e876b4e262e71398236a1550486a73ede
generic

vhost: move vdpa group bound check to vhost_vdpa - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7441d35d14d9a3d66d925d90cb73c75394e6d454
generic

vhost: move vdpa group bound check to vhost_vdpa - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/406db68f9cb976a8ddfafd631197264f2307e9c9

Vendor Advisories for CVE-2026-43248(1)

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

Patch Availability(13)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-08-23ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-08-23ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-08-23ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1060.64) @ noble2026-08-23ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
linuxKernel @ 6.12.75—osv

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 7.2~rc5-1~exp1 (335 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)6.12.85-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (113 versions)6.19.6-1—

Weakness Classification(1)

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

All Vendor Advisories

(12)

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 5× in last 7d / 75× 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 209 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-43248?
CVE-2026-43248 is a high vulnerability published on May 6, 2026. In the Linux kernel, the following vulnerability has been resolved: vhost: move vdpa group bound check to vhost_vdpa Remove duplication by consolidating these here. This reduces the posibility of a parent driver missing them. While we're at it, fix a bug in vdpa_sim where a valid ASID can be…
When was CVE-2026-43248 disclosed?
CVE-2026-43248 was first published in the National Vulnerability Database on May 6, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43248 actively exploited?
CVE-2026-43248 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 97.2% of all scored CVEs.
What is the CVSS score of CVE-2026-43248?
CVE-2026-43248 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-43248?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43248, 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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