CVE-2026-46166

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 5 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

wifi: mac80211: use safe list iteration in radar detect work

The call to ieee80211_dfs_cac_cancel can cause the iterated chanctx to be freed and removed from the list. Guard against this to avoid a slab-use-after-free error.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

May 28, 2026

Last Modified

August 5, 2026

Advisory Details (4)

Auto-updated Jun 2, 2026
No patch confirmed yet.
generic

wifi: mac80211: use safe list iteration in radar detect work - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ac8eb3e18f41e2cc8492cc1d358bcb786c850270
generic

wifi: mac80211: use safe list iteration in radar detect work - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/887ece6c23b49d02a6678e7a8d5ad213d75883ce
generic

wifi: mac80211: use safe list iteration in radar detect work - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7577a4b8a10fab45a6ee2045ea038a5adadbb585
generic

wifi: mac80211: use safe list iteration in radar detect work - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/120149fb3ebcf674832ca3cafd32bedcdb686dde

Vendor Advisories for CVE-2026-46166(5)

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

Patch Availability(14)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-14ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-14ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-09-14ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-09-14ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-09-14ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-09-14ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-14ubuntu
redhatkernel-0:6.12.0-55.84.1.el10_02026-06-29redhat
redhatkernel-0:5.14.0-687.17.1.el9_82026-06-22redhat
redhatkernel-0:5.14.0-570.123.1.el9_62026-06-22redhat
redhatkernel-0:6.12.0-211.26.1.el10_22026-06-20redhat
linuxKernel @ 6.12.88—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

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.88-1~bpo12+1 (21 versions)6.12.88-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.7-1~bpo13+1 (136 versions)7.0.7-1—

Weakness Classification(2)

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

Additional Vendor Advisories

(9)

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 10× in last 7d / 41× 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 293 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-46166?
CVE-2026-46166 is a high vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: use safe list iteration in radar detect work The call to ieee80211dfscac_cancel can cause the iterated chanctx to be freed and removed from the list. Guard against this to avoid a slab-use-after-free error.
When was CVE-2026-46166 disclosed?
CVE-2026-46166 was first published in the National Vulnerability Database on May 28, 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-2026-46166 actively exploited?
CVE-2026-46166 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 89.5% of all scored CVEs.
What is the CVSS score of CVE-2026-46166?
CVE-2026-46166 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-46166?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46166, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-46166

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