CVE-2026-66151

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-08-07. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

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

SonicWall Global VPN Client version 4.10.8.1108 and earlier is vulnerable to an out-of-bounds kernel memory read in the SWIPsec.sys driver, which could allow a local attacker to cause a system crash.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100CISA SSVC

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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
4th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 7, 2026

Last Modified

August 28, 2026

Advisory Details (1)

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

Security Advisory

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0010

Vendor Advisories for CVE-2026-66151(1)

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 15× in last 7d / 60× 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 130 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-66151?
CVE-2026-66151 is a medium vulnerability published on August 7, 2026. SonicWall Global VPN Client version 4.10.8.1108 and earlier is vulnerable to an out-of-bounds kernel memory read in the SWIPsec.sys driver, which could allow a local attacker to cause a system crash.
When was CVE-2026-66151 disclosed?
CVE-2026-66151 was first published on August 7, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66151 actively exploited?
CVE-2026-66151 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (4th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-66151?
CVE-2026-66151 has a CVSS v3.1 base score of 5.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-66151?
No fix for CVE-2026-66151 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-66151 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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