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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 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)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

June 5, 2026

Last Modified

July 23, 2026

Advisory Details (1)

Auto-updated Sep 12, 2026
No patch confirmed yet.
generic Patch Available

MM-SA-2026-002: dot11ah.ko S1G Caps Overflow | Morse Micro

https://www.morsemicro.com/security-advisories/MM-SA-2026-002

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 8× in last 7d / 52× 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 410 total refreshes for this CVE.

  1. 2026-09-16 05:15 UTCEPSS rescore
  2. 2026-09-15 03:12 UTCEPSS rescore
  3. 2026-09-15 03:12 UTCEPSS rescore
  4. 2026-09-14 08:56 UTCGHSA enrichment
  5. 2026-09-14 05:04 UTCEG score recompute
  6. 2026-09-14 05:04 UTCGHSA enrichment
  7. 2026-09-11 14:53 UTCEPSS rescore
  8. 2026-09-11 14:53 UTCEPSS rescore
  9. 2026-09-08 22:01 UTCEPSS rescore
  10. 2026-09-06 13:48 UTCEPSS rescore
  11. 2026-09-04 05:07 UTCEPSS rescore
  12. 2026-09-02 14:12 UTCEPSS rescore
  13. 2026-09-01 13:54 UTCEPSS rescore
  14. 2026-09-01 04:40 UTCEPSS rescore
  15. 2026-09-01 04:40 UTCEPSS rescore
  16. 2026-08-30 19:18 UTCEPSS rescore
  17. 2026-08-30 19:17 UTCEPSS rescore
  18. 2026-08-30 01:22 UTCEPSS rescore
  19. 2026-08-28 21:42 UTCEPSS rescore
  20. 2026-08-27 14:25 UTCEPSS rescore
  21. 2026-08-26 14:47 UTCEPSS rescore
  22. 2026-08-25 13:49 UTCEPSS rescore
  23. 2026-08-25 06:17 UTCGHSA enrichment
  24. 2026-08-25 02:06 UTCEG score recompute
  25. 2026-08-25 02:06 UTCGHSA enrichment
Show 75 more
  1. 2026-08-24 14:18 UTCEPSS rescore
  2. 2026-08-24 00:05 UTCGHSA enrichment
  3. 2026-08-23 20:12 UTCGHSA enrichment
  4. 2026-08-23 16:21 UTCGHSA enrichment
  5. 2026-08-23 12:28 UTCEG score recompute
  6. 2026-08-23 12:28 UTCGHSA enrichment
  7. 2026-08-23 00:19 UTCEPSS rescore
  8. 2026-08-22 00:05 UTCEG score recompute
  9. 2026-08-22 00:05 UTCGHSA enrichment
  10. 2026-08-21 23:49 UTCEPSS rescore
  11. 2026-08-21 20:07 UTCGHSA enrichment
  12. 2026-08-21 12:48 UTCGHSA enrichment
  13. 2026-08-21 06:43 UTCGHSA enrichment
  14. 2026-08-21 01:11 UTCEG score recompute
  15. 2026-08-21 01:10 UTCGHSA enrichment
  16. 2026-08-20 22:56 UTCEPSS rescore
  17. 2026-08-20 21:18 UTCGHSA enrichment
  18. 2026-08-20 17:27 UTCGHSA enrichment
  19. 2026-08-20 09:43 UTCEG score recompute
  20. 2026-08-20 09:43 UTCGHSA enrichment
  21. 2026-08-19 17:04 UTCEPSS rescore
  22. 2026-08-18 13:49 UTCEPSS rescore
  23. 2026-08-18 13:49 UTCEPSS rescore
  24. 2026-08-17 14:32 UTCEG score recompute
  25. 2026-08-17 14:32 UTCGHSA enrichment
  26. 2026-08-17 13:47 UTCEPSS rescore
  27. 2026-08-17 10:33 UTCGHSA enrichment
  28. 2026-08-17 06:41 UTCGHSA enrichment
  29. 2026-08-17 02:20 UTCEG score recompute
  30. 2026-08-17 02:20 UTCGHSA enrichment
  31. 2026-08-16 14:56 UTCEPSS rescore
  32. 2026-08-16 14:56 UTCEPSS rescore
  33. 2026-08-16 14:47 UTCGHSA enrichment
  34. 2026-08-16 09:37 UTCGHSA enrichment
  35. 2026-08-16 05:46 UTCEG score recompute
  36. 2026-08-16 05:46 UTCGHSA enrichment
  37. 2026-08-16 02:15 UTCEPSS rescore
  38. 2026-08-16 01:55 UTCGHSA enrichment
  39. 2026-08-15 16:37 UTCGHSA enrichment
  40. 2026-08-15 12:31 UTCGHSA enrichment
  41. 2026-08-15 01:39 UTCEG score recompute
  42. 2026-08-15 01:39 UTCGHSA enrichment
  43. 2026-08-15 01:31 UTCEPSS rescore
  44. 2026-08-14 21:48 UTCGHSA enrichment
  45. 2026-08-14 17:57 UTCGHSA enrichment
  46. 2026-08-14 13:57 UTCGHSA enrichment
  47. 2026-08-14 10:06 UTCGHSA enrichment
  48. 2026-08-14 06:15 UTCGHSA enrichment
  49. 2026-08-14 02:23 UTCGHSA enrichment
  50. 2026-08-13 22:32 UTCEG score recompute
  51. 2026-08-13 22:32 UTCGHSA enrichment
  52. 2026-08-13 22:00 UTCEPSS rescore
  53. 2026-08-13 12:25 UTCGHSA enrichment
  54. 2026-08-13 07:57 UTCGHSA enrichment
  55. 2026-08-13 03:29 UTCGHSA enrichment
  56. 2026-08-12 23:38 UTCGHSA enrichment
  57. 2026-08-12 19:47 UTCGHSA enrichment
  58. 2026-08-12 15:56 UTCEG score recompute
  59. 2026-08-12 15:56 UTCGHSA enrichment
  60. 2026-08-12 13:51 UTCEPSS rescore
  61. 2026-08-12 12:05 UTCGHSA enrichment
  62. 2026-08-12 08:13 UTCGHSA enrichment
  63. 2026-08-12 01:41 UTCGHSA enrichment
  64. 2026-08-11 21:50 UTCGHSA enrichment
  65. 2026-08-11 17:59 UTCEG score recompute
  66. 2026-08-11 17:59 UTCGHSA enrichment
  67. 2026-08-11 13:43 UTCEPSS rescore
  68. 2026-08-11 13:13 UTCGHSA enrichment
  69. 2026-08-11 09:22 UTCGHSA enrichment
  70. 2026-08-11 05:30 UTCGHSA enrichment
  71. 2026-08-11 01:39 UTCEG score recompute
  72. 2026-08-11 01:39 UTCGHSA enrichment
  73. 2026-08-11 00:00 UTCEPSS rescore
  74. 2026-08-10 21:48 UTCGHSA enrichment
  75. 2026-08-10 13:18 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, with the most recent update on July 23, 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 1% probability of exploitation in the next 30 days, which ranks it in the top 54.7% of all scored CVEs.
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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