CVE-2026-7763

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 morse.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 frame containing a malformed Traffic Indication Map (TIM) Information Element. The function morse_page_slicing_process_tim_element() in page_slicing.c derives the TIM bitmap length directly from a received IE field without validating it against the fixed-size destination buffer before passing it to memset and memcpy operations, allowing up to 252 bytes of attacker-controlled data to be written beyond the buffer boundary. Because beacons are broadcast frames processed during passive scanning, no authentication, association, or user interaction is required.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
41.3%
KEV
Not listed

Published

June 5, 2026

Last Modified

June 5, 2026

References (1)

Vendor Advisories for CVE-2026-7763(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 56× in last 7d / 315× 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 318 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 23:45 UTCEG score recompute
  6. 2026-07-05 23:45 UTCGHSA enrichment
  7. 2026-07-05 18:48 UTCEG score recompute
  8. 2026-07-05 18:48 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. 2026-07-04 00:18 UTCEG score recompute
  16. 2026-07-04 00:18 UTCGHSA enrichment
  17. 2026-07-03 20:36 UTCEG score recompute
  18. 2026-07-03 20:36 UTCGHSA enrichment
  19. 2026-07-03 16:52 UTCEG score recompute
  20. 2026-07-03 16:52 UTCGHSA enrichment
  21. 2026-07-03 10:20 UTCEG score recompute
  22. 2026-07-03 10:20 UTCGHSA enrichment
  23. 2026-07-03 01:52 UTCEG score recompute
  24. 2026-07-03 01:52 UTCGHSA enrichment
  25. 2026-07-02 21:58 UTCEG score recompute
Show 75 more
  1. 2026-07-02 21:58 UTCGHSA enrichment
  2. 2026-07-02 18:14 UTCEG score recompute
  3. 2026-07-02 18:14 UTCGHSA enrichment
  4. 2026-07-02 13:56 UTCEG score recompute
  5. 2026-07-02 13:56 UTCGHSA enrichment
  6. 2026-07-02 10:13 UTCEG score recompute
  7. 2026-07-02 10:13 UTCGHSA enrichment
  8. 2026-07-02 06:32 UTCEG score recompute
  9. 2026-07-02 06:31 UTCGHSA enrichment
  10. 2026-07-02 02:47 UTCEG score recompute
  11. 2026-07-02 02:47 UTCGHSA enrichment
  12. 2026-07-01 23:06 UTCEG score recompute
  13. 2026-07-01 23:06 UTCGHSA enrichment
  14. 2026-07-01 18:33 UTCEG score recompute
  15. 2026-07-01 18:33 UTCGHSA enrichment
  16. 2026-07-01 15:07 UTCEPSS rescore
  17. 2026-07-01 14:49 UTCEG score recompute
  18. 2026-07-01 14:49 UTCGHSA enrichment
  19. 2026-07-01 11:05 UTCEG score recompute
  20. 2026-07-01 11:05 UTCGHSA enrichment
  21. 2026-07-01 07:23 UTCEG score recompute
  22. 2026-07-01 07:23 UTCGHSA enrichment
  23. 2026-07-01 01:48 UTCEG score recompute
  24. 2026-07-01 01:48 UTCGHSA enrichment
  25. 2026-06-30 23:22 UTCEPSS rescore
  26. 2026-06-30 22:06 UTCEG score recompute
  27. 2026-06-30 22:06 UTCGHSA enrichment
  28. 2026-06-30 18:16 UTCEG score recompute
  29. 2026-06-30 18:16 UTCGHSA enrichment
  30. 2026-06-30 07:52 UTCEG score recompute
  31. 2026-06-30 07:52 UTCGHSA enrichment
  32. 2026-06-30 03:48 UTCEG score recompute
  33. 2026-06-30 03:47 UTCGHSA enrichment
  34. 2026-06-30 00:00 UTCEG score recompute
  35. 2026-06-30 00:00 UTCGHSA enrichment
  36. 2026-06-29 20:06 UTCEG score recompute
  37. 2026-06-29 20:06 UTCGHSA enrichment
  38. 2026-06-29 16:24 UTCEG score recompute
  39. 2026-06-29 16:24 UTCGHSA enrichment
  40. 2026-06-29 14:06 UTCEPSS rescore
  41. 2026-06-29 12:42 UTCEG score recompute
  42. 2026-06-29 12:42 UTCGHSA enrichment
  43. 2026-06-29 08:59 UTCEG score recompute
  44. 2026-06-29 08:59 UTCGHSA enrichment
  45. 2026-06-29 01:48 UTCEG score recompute
  46. 2026-06-29 01:48 UTCGHSA enrichment
  47. 2026-06-28 22:06 UTCEG score recompute
  48. 2026-06-28 22:06 UTCGHSA enrichment
  49. 2026-06-28 18:23 UTCEG score recompute
  50. 2026-06-28 18:23 UTCGHSA enrichment
  51. 2026-06-28 14:41 UTCEG score recompute
  52. 2026-06-28 14:41 UTCGHSA enrichment
  53. 2026-06-28 14:07 UTCEPSS rescore
  54. 2026-06-28 10:59 UTCEG score recompute
  55. 2026-06-28 10:58 UTCGHSA enrichment
  56. 2026-06-28 07:17 UTCEG score recompute
  57. 2026-06-28 07:16 UTCGHSA enrichment
  58. 2026-06-28 04:56 UTCEPSS rescore
  59. 2026-06-28 03:28 UTCEG score recompute
  60. 2026-06-28 03:28 UTCGHSA enrichment
  61. 2026-06-27 23:46 UTCEG score recompute
  62. 2026-06-27 23:46 UTCGHSA enrichment
  63. 2026-06-27 20:04 UTCEG score recompute
  64. 2026-06-27 20:04 UTCGHSA enrichment
  65. 2026-06-27 16:22 UTCEG score recompute
  66. 2026-06-27 16:22 UTCGHSA enrichment
  67. 2026-06-27 12:40 UTCEG score recompute
  68. 2026-06-27 12:40 UTCGHSA enrichment
  69. 2026-06-27 08:57 UTCEG score recompute
  70. 2026-06-27 08:57 UTCGHSA enrichment
  71. 2026-06-27 05:14 UTCEG score recompute
  72. 2026-06-27 05:14 UTCGHSA enrichment
  73. 2026-06-27 03:08 UTCEPSS rescore
  74. 2026-06-27 01:07 UTCEG score recompute
  75. 2026-06-27 01:07 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-7763?
CVE-2026-7763 is a critical vulnerability published on June 5, 2026. A heap-based buffer overflow vulnerability in the morse.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-2026-7763 disclosed?
CVE-2026-7763 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-2026-7763 actively exploited?
CVE-2026-7763 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 41.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-7763?
CVE-2026-7763 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-7763?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-7763, 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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