CVE-2026-46234

HIGHCVSS · not yet scored7.8
EchelonGraph scoreLOW confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-28.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa
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 v2: —Exploit: None knownExposed: 0

A fix is available — apply it.

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

vsock: fix buffer size clamping order

In vsock_update_buffer_size(), the buffer size was being clamped to the maximum first, and then to the minimum. If a user sets a minimum buffer size larger than the maximum, the minimum check overrides the maximum check, inverting the constraint.

This breaks the intended socket memory boundaries by allowing the vsk->buffer_size to grow beyond the configured vsk->buffer_max_size.

Fix this by checking the minimum first, and then the maximum. This ensures the buffer size never exceeds the buffer_max_size.

CVSS v3
—
EG Score
7.8(low)
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 28, 2026

Last Modified

June 14, 2026

Advisory Details (8)

Auto-updated Jun 10, 2026
No patch confirmed yet.
generic

vsock: fix buffer size clamping order - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f6ec135941d2c1c2dbb87b5ce1783f4f6ac6ccca
generic

vsock: fix buffer size clamping order - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d114bfdc9b76bf93b881e195b7ec957c14227bab
generic

vsock: fix buffer size clamping order - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/caf11dfea5233a69298a1c448bbf8d1639c80536
generic

vsock: fix buffer size clamping order - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a998a7e250bf976539e05a00ec64a81292afecaa
generic

vsock: fix buffer size clamping order - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/310da27932dd0afe7ce7456dfe1f0814c3301f41
generic

vsock: fix buffer size clamping order - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2602f7bb5818e92315feeaeb71d8ce4d5c9ab160
generic

vsock: fix buffer size clamping order - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0b68881501460c3761f196469e1e503218c5e536
generic

vsock: fix buffer size clamping order - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/01ef69785dc3162f588a361ab770b1e312800188

Vendor Advisories for CVE-2026-46234(2)

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

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-25ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-25ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1063.71~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-25ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-25ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-25ubuntu

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

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
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 ... 6.12.90-1~bpo12+1 (23 versions)6.12.90-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (135 versions)7.0.9-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 87× 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 258 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. 2026-08-25 04:46 UTCEG score recompute
  11. 2026-08-25 04:46 UTCVendor advisory
  12. 2026-08-25 04:45 UTCGHSA enrichment
  13. 2026-08-23 14:32 UTCEG score recompute
  14. 2026-08-23 14:32 UTCVendor advisory
  15. 2026-08-23 14:31 UTCGHSA enrichment
  16. 2026-08-23 00:19 UTCEPSS rescore
  17. 2026-08-21 23:49 UTCEPSS rescore
  18. 2026-08-21 15:27 UTCVendor advisory
  19. 2026-08-21 15:27 UTCGHSA enrichment
  20. 2026-08-21 00:42 UTCVendor advisory
  21. 2026-08-21 00:42 UTCGHSA enrichment
  22. 2026-08-20 10:48 UTCEG score recompute
  23. 2026-08-20 10:48 UTCVendor advisory
  24. 2026-08-20 10:47 UTCGHSA enrichment
  25. 2026-08-19 17:04 UTCEPSS rescore
Show 75 more
  1. 2026-08-18 13:48 UTCEPSS rescore
  2. 2026-08-17 13:47 UTCEPSS rescore
  3. 2026-08-17 08:22 UTCVendor advisory
  4. 2026-08-17 08:22 UTCGHSA enrichment
  5. 2026-08-16 15:10 UTCEG score recompute
  6. 2026-08-16 15:10 UTCVendor advisory
  7. 2026-08-16 15:10 UTCGHSA enrichment
  8. 2026-08-16 14:56 UTCEPSS rescore
  9. 2026-08-16 02:35 UTCEG score recompute
  10. 2026-08-16 02:35 UTCVendor advisory
  11. 2026-08-16 02:35 UTCGHSA enrichment
  12. 2026-08-16 02:14 UTCEPSS rescore
  13. 2026-08-15 01:38 UTCEG score recompute
  14. 2026-08-15 01:38 UTCVendor advisory
  15. 2026-08-15 01:38 UTCGHSA enrichment
  16. 2026-08-15 01:30 UTCEPSS rescore
  17. 2026-08-14 13:21 UTCVendor advisory
  18. 2026-08-14 13:21 UTCGHSA enrichment
  19. 2026-08-14 01:04 UTCEG score recompute
  20. 2026-08-14 01:04 UTCVendor advisory
  21. 2026-08-14 01:04 UTCGHSA enrichment
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-13 02:23 UTCVendor advisory
  24. 2026-08-13 02:23 UTCGHSA enrichment
  25. 2026-08-12 14:06 UTCEG score recompute
  26. 2026-08-12 14:06 UTCVendor advisory
  27. 2026-08-12 14:06 UTCGHSA enrichment
  28. 2026-08-12 13:51 UTCEPSS rescore
  29. 2026-08-12 01:46 UTCEG score recompute
  30. 2026-08-12 01:46 UTCVendor advisory
  31. 2026-08-12 01:46 UTCGHSA enrichment
  32. 2026-08-11 13:29 UTCVendor advisory
  33. 2026-08-11 13:29 UTCGHSA enrichment
  34. 2026-08-11 00:06 UTCEG score recompute
  35. 2026-08-11 00:06 UTCVendor advisory
  36. 2026-08-11 00:06 UTCGHSA enrichment
  37. 2026-08-11 00:00 UTCEPSS rescore
  38. 2026-08-10 11:26 UTCVendor advisory
  39. 2026-08-10 11:26 UTCGHSA enrichment
  40. 2026-08-09 23:06 UTCEG score recompute
  41. 2026-08-09 23:06 UTCVendor advisory
  42. 2026-08-09 23:06 UTCGHSA enrichment
  43. 2026-08-09 13:46 UTCEPSS rescore
  44. 2026-08-09 10:49 UTCVendor advisory
  45. 2026-08-09 10:49 UTCGHSA enrichment
  46. 2026-08-08 22:31 UTCEG score recompute
  47. 2026-08-08 22:31 UTCVendor advisory
  48. 2026-08-08 22:31 UTCGHSA enrichment
  49. 2026-08-08 16:37 UTCEPSS rescore
  50. 2026-08-08 10:13 UTCVendor advisory
  51. 2026-08-08 10:13 UTCGHSA enrichment
  52. 2026-08-07 21:56 UTCEG score recompute
  53. 2026-08-07 21:56 UTCVendor advisory
  54. 2026-08-07 21:56 UTCGHSA enrichment
  55. 2026-08-07 09:39 UTCVendor advisory
  56. 2026-08-07 09:39 UTCGHSA enrichment
  57. 2026-08-06 21:22 UTCEG score recompute
  58. 2026-08-06 21:22 UTCVendor advisory
  59. 2026-08-06 21:22 UTCGHSA enrichment
  60. 2026-08-06 13:47 UTCEPSS rescore
  61. 2026-08-06 09:05 UTCVendor advisory
  62. 2026-08-06 09:05 UTCGHSA enrichment
  63. 2026-08-05 20:48 UTCEG score recompute
  64. 2026-08-05 20:48 UTCVendor advisory
  65. 2026-08-05 20:48 UTCGHSA enrichment
  66. 2026-08-05 19:17 UTCEPSS rescore
  67. 2026-08-04 23:49 UTCEG score recompute
  68. 2026-08-04 23:49 UTCVendor advisory
  69. 2026-08-04 23:48 UTCGHSA enrichment
  70. 2026-08-04 15:10 UTCEPSS rescore
  71. 2026-08-04 10:39 UTCEPSS rescore
  72. 2026-08-04 04:30 UTCVendor advisory
  73. 2026-08-04 04:30 UTCGHSA enrichment
  74. 2026-08-03 16:12 UTCEG score recompute
  75. 2026-08-03 16:12 UTCVendor advisory

Related CVEs(same vendor + same CWE)

Frequently asked(4)

What is CVE-2026-46234?
CVE-2026-46234 is a high vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: vsock: fix buffer size clamping order In vsockupdatebuffer_size(), the buffer size was being clamped to the maximum first, and then to the minimum. If a user sets a minimum buffer size larger than the maximum, the minimum check…
When was CVE-2026-46234 disclosed?
CVE-2026-46234 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46234 actively exploited?
CVE-2026-46234 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 97.1% of all scored CVEs.
How do I remediate CVE-2026-46234?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46234, 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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