CVE-2026-43141

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-05-06. NVD baseline CVSS 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

A fix is available — apply it.

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

ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut

Number of MW LUTs depends on NTB configuration and can be set to zero, in such scenario rounddown_pow_of_two will cause undefined behaviour and should not be performed. This patch ensures that rounddown_pow_of_two is called on valid value.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity71% × 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

May 13, 2026

Advisory Details (8)

Auto-updated May 13, 2026
No patch confirmed yet.
generic

ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d652ef399f131fcd5f8f34266167449ee7c9e5b3
generic

ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d0559d07afabfddaaded6a61a16154486b956764
generic

ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a133e3caf844a3f56b6eef89ddaa66115874f6bd
generic

ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a11d03d116eef138a7249202bd772c8e61915aec
generic

ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5590cd04d6845c01a6bad985a491c58af6fb5389
generic

ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2e4d5e8d86a969318340be95470bb76e52392082
generic

ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1a867d0d79a4a570a33f2f433919ad2bd7a27b67
generic

ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/186615f8855a0be4ee7d3fcd09a8ecc10e783b08

Patch Availability(25)

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-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ 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-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-23ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-23ubuntu
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-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-23ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-23ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-23ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-23ubuntu
linuxKernel @ 5.10.252—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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (53 versions)5.10.257-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (48 versions)6.1.170-1—
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 (116 versions)6.19.6-1—

Weakness Classification(1)

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

All Vendor Advisories

(24)

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 6× in last 7d / 28× 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 201 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-43141?
CVE-2026-43141 is a high vulnerability published on May 6, 2026. In the Linux kernel, the following vulnerability has been resolved: ntb: ntbhwswitchtec: Fix shift-out-of-bounds for 0 mw lut Number of MW LUTs depends on NTB configuration and can be set to zero, in such scenario rounddownpowof_two will cause undefined behaviour and should not be performed. This…
When was CVE-2026-43141 disclosed?
CVE-2026-43141 was first published in the National Vulnerability Database on May 6, 2026, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43141 actively exploited?
CVE-2026-43141 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 96.9% of all scored CVEs.
What is the CVSS score of CVE-2026-43141?
CVE-2026-43141 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-43141?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43141, 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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