CVE-2026-46180

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: 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: brcmfmac: Fix potential use-after-free issue when stopping watchdog task

Watchdog task might end between send_sig() and kthread_stop() calls, what results in the use-after-free issue. Fix this by increasing watchdog task reference count before calling send_sig() and dropping it by switching to kthread_stop_put().

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
3.3%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 19, 2026

Advisory Details (5)

Auto-updated Jun 11, 2026
No patch confirmed yet.
generic

wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ed4168d1a50fef5be8eca947fbbf05a28507d265
generic

wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03
generic

wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143
generic

wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c
generic

wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366

Vendor Advisories for CVE-2026-46180(2)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 86× 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 149 total refreshes for this CVE.

  1. 2026-07-16 10:20 UTCEG score recompute
  2. 2026-07-16 10:20 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-13 22:30 UTCEPSS rescore
  6. 2026-07-12 05:46 UTCEPSS rescore
  7. 2026-07-11 21:15 UTCEG score recompute
  8. 2026-07-11 21:15 UTCVendor advisory
  9. 2026-07-11 21:15 UTCGHSA enrichment
  10. 2026-07-11 08:27 UTCEPSS rescore
  11. 2026-07-09 19:10 UTCEPSS rescore
  12. 2026-07-08 18:24 UTCEG score recompute
  13. 2026-07-08 18:24 UTCVendor advisory
  14. 2026-07-08 18:24 UTCGHSA enrichment
  15. 2026-07-08 15:16 UTCEPSS rescore
  16. 2026-07-07 13:46 UTCEPSS rescore
  17. 2026-07-06 16:27 UTCEPSS rescore
  18. 2026-07-06 02:23 UTCEPSS rescore
  19. 2026-07-05 02:30 UTCEPSS rescore
  20. 2026-07-04 06:31 UTCEPSS rescore
  21. 2026-07-02 14:14 UTCEG score recompute
  22. 2026-07-02 14:14 UTCVendor advisory
  23. 2026-07-02 14:14 UTCGHSA enrichment
  24. 2026-07-01 15:42 UTCEG score recompute
  25. 2026-07-01 15:42 UTCVendor advisory
Show 75 more
  1. 2026-07-01 15:42 UTCGHSA enrichment
  2. 2026-07-01 15:07 UTCEPSS rescore
  3. 2026-07-01 03:07 UTCEG score recompute
  4. 2026-07-01 03:07 UTCVendor advisory
  5. 2026-07-01 03:07 UTCGHSA enrichment
  6. 2026-06-30 23:22 UTCEPSS rescore
  7. 2026-06-30 02:15 UTCEG score recompute
  8. 2026-06-30 02:15 UTCVendor advisory
  9. 2026-06-30 02:15 UTCGHSA enrichment
  10. 2026-06-29 14:06 UTCEPSS rescore
  11. 2026-06-29 14:06 UTCEPSS rescore
  12. 2026-06-29 13:44 UTCEG score recompute
  13. 2026-06-29 13:44 UTCVendor advisory
  14. 2026-06-29 13:44 UTCGHSA enrichment
  15. 2026-06-28 19:20 UTCEG score recompute
  16. 2026-06-28 19:20 UTCVendor advisory
  17. 2026-06-28 19:20 UTCGHSA enrichment
  18. 2026-06-28 14:07 UTCEPSS rescore
  19. 2026-06-28 06:48 UTCEG score recompute
  20. 2026-06-28 06:48 UTCVendor advisory
  21. 2026-06-28 06:48 UTCGHSA enrichment
  22. 2026-06-28 04:56 UTCEPSS rescore
  23. 2026-06-28 04:56 UTCEPSS rescore
  24. 2026-06-27 18:15 UTCEG score recompute
  25. 2026-06-27 18:15 UTCVendor advisory
  26. 2026-06-27 18:14 UTCGHSA enrichment
  27. 2026-06-27 05:28 UTCEG score recompute
  28. 2026-06-27 05:28 UTCVendor advisory
  29. 2026-06-27 05:27 UTCGHSA enrichment
  30. 2026-06-27 03:08 UTCEPSS rescore
  31. 2026-06-26 16:52 UTCEG score recompute
  32. 2026-06-26 16:52 UTCVendor advisory
  33. 2026-06-26 16:51 UTCGHSA enrichment
  34. 2026-06-25 23:49 UTCEG score recompute
  35. 2026-06-25 23:49 UTCVendor advisory
  36. 2026-06-25 23:49 UTCGHSA enrichment
  37. 2026-06-25 13:49 UTCEPSS rescore
  38. 2026-06-25 11:15 UTCEG score recompute
  39. 2026-06-25 11:15 UTCVendor advisory
  40. 2026-06-25 11:15 UTCGHSA enrichment
  41. 2026-06-24 22:44 UTCEG score recompute
  42. 2026-06-24 22:44 UTCVendor advisory
  43. 2026-06-24 22:44 UTCGHSA enrichment
  44. 2026-06-24 14:05 UTCEPSS rescore
  45. 2026-06-23 21:33 UTCEPSS rescore
  46. 2026-06-23 21:33 UTCEPSS rescore
  47. 2026-06-22 14:25 UTCEPSS rescore
  48. 2026-06-22 14:25 UTCEPSS rescore
  49. 2026-06-21 14:56 UTCEPSS rescore
  50. 2026-06-21 14:56 UTCEPSS rescore
  51. 2026-06-21 01:59 UTCEPSS rescore
  52. 2026-06-21 01:59 UTCEPSS rescore
  53. 2026-06-19 19:26 UTCEPSS rescore
  54. 2026-06-19 19:26 UTCEPSS rescore
  55. 2026-06-19 15:13 UTCNVD updateCVSS v3 → 7.8 · severity → HIGH
  56. 2026-06-17 18:15 UTCEG score recompute
  57. 2026-06-17 18:14 UTCGHSA enrichment
  58. 2026-06-17 17:53 UTCEPSS rescore
  59. 2026-06-17 04:13 UTCEG score recompute
  60. 2026-06-17 04:13 UTCGHSA enrichment
  61. 2026-06-16 17:52 UTCEPSS rescore
  62. 2026-06-16 15:42 UTCEG score recompute
  63. 2026-06-16 15:42 UTCVendor advisory
  64. 2026-06-16 15:42 UTCGHSA enrichment
  65. 2026-06-16 01:31 UTCEG score recompute
  66. 2026-06-16 01:31 UTCVendor advisory
  67. 2026-06-16 01:31 UTCGHSA enrichment
  68. 2026-06-15 17:49 UTCEPSS rescore
  69. 2026-06-15 12:59 UTCEG score recompute
  70. 2026-06-15 12:59 UTCVendor advisory
  71. 2026-06-15 12:59 UTCGHSA enrichment
  72. 2026-06-14 23:33 UTCMITRE cvelistV5
  73. 2026-06-14 20:34 UTCEG score recompute
  74. 2026-06-14 20:34 UTCVendor advisory
  75. 2026-06-14 20:34 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-46180?
CVE-2026-46180 is a high vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task Watchdog task might end between sendsig() and kthreadstop() calls, what results in the use-after-free issue. Fix this by increasing watchdog task…
When was CVE-2026-46180 disclosed?
CVE-2026-46180 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46180 actively exploited?
CVE-2026-46180 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46180?
CVE-2026-46180 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-46180?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46180, 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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