CVE-2026-43172

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-06. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

wifi: iwlwifi: fix 22000 series SMEM parsing

If the firmware were to report three LMACs (which doesn't exist in hardware) then using "fwrt->smem_cfg.lmac[2]" is an overrun of the array. Reject such and use IWL_FW_CHECK instead of WARN_ON in this function.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
17.0%
KEV
Not listed

Published

May 6, 2026

Last Modified

May 13, 2026

Advisory Details (3)

Auto-updated May 9, 2026
No patch confirmed yet.
generic

wifi: iwlwifi: fix 22000 series SMEM parsing - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/58192b9ce09b0f0f86e2036683bd542130b91a98
generic

wifi: iwlwifi: fix 22000 series SMEM parsing - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2b4b1510aaaf5b9fb57327ecffc20c055f61f205
generic

wifi: iwlwifi: fix 22000 series SMEM parsing - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1d49a42717bdc8de77eabeb5b7d3e88d141ffea9

Vendor Advisories for CVE-2026-43172(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 33× 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 122 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-43172?
CVE-2026-43172 is a high vulnerability published on May 6, 2026. In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: fix 22000 series SMEM parsing If the firmware were to report three LMACs (which doesn't exist in hardware) then using "fwrt->smem_cfg.lmac[2]" is an overrun of the array. Reject such and use IWLFWCHECK instead of…
When was CVE-2026-43172 disclosed?
CVE-2026-43172 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-2026-43172 actively exploited?
CVE-2026-43172 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-43172?
CVE-2026-43172 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-43172?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43172, 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.

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