CVE-2026-20886

HIGHNVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

Score 7.4 from GitHub Security Advisory published 2026-08-11. NVD baseline CVSS 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.4EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.4Exploit: None knownExposed services: Not assessed

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

Out-of-bounds write for some Intel(R) PROSet/Wireless WiFi Software for Windows within Ring 2: Device Drivers may allow a denial of service. Network adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via adjacent access when attack requirements are not present without special internal knowledge and requires passive user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (low) impacts.

CVSS v3
7.4
EG Score
7.4HIGHmedium confidence
EG Risk
33
EG Risk 33/100CISA 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
Severity74% × 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
12th
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 11, 2026

Last Modified

September 1, 2026

Advisory Details (1)

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

INTEL-SA-01422

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01422.html

Vendor Advisories for CVE-2026-20886(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 18× in last 7d / 97× 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 170 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-20886?
CVE-2026-20886 is a high vulnerability published on August 11, 2026. Out-of-bounds write for some Intel(R) PROSet/Wireless WiFi Software for Windows within Ring 2: Device Drivers may allow a denial of service. Network adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via…
When was CVE-2026-20886 disclosed?
CVE-2026-20886 was first published on August 11, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20886 actively exploited?
CVE-2026-20886 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-20886?
CVE-2026-20886 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-20886?
No fix for CVE-2026-20886 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-2026-20886 are linked in the Vendor Advisories panel on this page.

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