CVE-2026-7762

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-05. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

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

A heap-based buffer overflow vulnerability in the dot11ah.ko HaLow Wi-Fi kernel driver in Morse Micro HaLowLink 2 software versions prior to 2.11.13 allows an unauthenticated attacker within radio range to cause a Denial of Service (kernel panic) or potentially achieve Remote Code Execution via a crafted 802.11ah beacon or probe response frame containing a malformed S1G Capabilities Information Element (IE element ID 0xD9). The function morse_dot11ah_find_s1g_caps_for_bssid() uses the IE length field directly as the size argument to memcpy without validating it against the 15-byte destination buffer. An attacker can supply up to 255 bytes, causing an overflow of up to 240 bytes of attacker-controlled data into adjacent kernel heap memory. The vulnerability is triggerable during normal scanning without authentication, association, or user interaction.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
42.9%
KEV
Not listed

Published

June 5, 2026

Last Modified

June 5, 2026

References (1)

Vendor Advisories for CVE-2026-7762(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 54× in last 7d / 307× 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 310 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-7762?
CVE-2026-7762 is a critical vulnerability published on June 5, 2026. A heap-based buffer overflow vulnerability in the dot11ah.ko HaLow Wi-Fi kernel driver in Morse Micro HaLowLink 2 software versions prior to 2.11.13 allows an unauthenticated attacker within radio range to cause a Denial of Service (kernel panic) or potentially achieve Remote Code Execution via a…
When was CVE-2026-7762 disclosed?
CVE-2026-7762 was first published in the National Vulnerability Database on June 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-7762 actively exploited?
CVE-2026-7762 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-7762?
CVE-2026-7762 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-7762?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-7762, 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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