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 — 4 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
10%
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(12)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-25ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
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

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 (133 versions)7.0.7-1—

Weakness Classification(2)

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

Additional Vendor Advisories

(8)

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 8× in last 7d / 111× 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 274 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

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 89.8% 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

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