CVE-2026-77500

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

Release of invalid pointer or reference in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 18, 2026

Advisory Details (1)

Auto-updated Sep 8, 2026
Patch available. Sources: microsoft.
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77500

Vendor Advisories for CVE-2026-77500(2)

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 56× in last 7d / 93× 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.

  1. 2026-09-19 07:49 UTCVendor advisory
  2. 2026-09-19 07:49 UTCGHSA enrichment
  3. 2026-09-18 20:46 UTCEG score recompute
  4. 2026-09-18 20:46 UTCVendor advisory
  5. 2026-09-18 20:46 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 14:14 UTCVendor advisory
  8. 2026-09-18 14:14 UTCGHSA enrichment
  9. 2026-09-18 13:50 UTCVendor advisory
  10. 2026-09-18 13:50 UTCGHSA enrichment
  11. 2026-09-18 10:12 UTCVendor advisory
  12. 2026-09-18 10:12 UTCGHSA enrichment
  13. 2026-09-17 23:09 UTCVendor advisory
  14. 2026-09-17 23:09 UTCGHSA enrichment
  15. 2026-09-17 19:56 UTCEG score recompute
  16. 2026-09-17 19:56 UTCVendor advisory
  17. 2026-09-17 19:56 UTCGHSA enrichment
  18. 2026-09-17 09:17 UTCVendor advisory
  19. 2026-09-17 09:17 UTCGHSA enrichment
  20. 2026-09-16 22:14 UTCEG score recompute
  21. 2026-09-16 22:14 UTCVendor advisory
  22. 2026-09-16 22:14 UTCGHSA enrichment
  23. 2026-09-16 15:31 UTCEG score recompute
  24. 2026-09-16 15:31 UTCVendor advisory
  25. 2026-09-16 15:31 UTCGHSA enrichment
Show 68 more
  1. 2026-09-16 14:08 UTCEPSS rescore
  2. 2026-09-16 10:11 UTCEG score recompute
  3. 2026-09-16 10:11 UTCVendor advisory
  4. 2026-09-16 10:11 UTCGHSA enrichment
  5. 2026-09-16 05:15 UTCEPSS rescore
  6. 2026-09-15 23:08 UTCVendor advisory
  7. 2026-09-15 23:08 UTCGHSA enrichment
  8. 2026-09-15 18:02 UTCVendor advisory
  9. 2026-09-15 18:02 UTCGHSA enrichment
  10. 2026-09-15 10:22 UTCEG score recompute
  11. 2026-09-15 10:22 UTCVendor advisory
  12. 2026-09-15 10:22 UTCGHSA enrichment
  13. 2026-09-15 03:12 UTCEPSS rescore
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-14 23:16 UTCVendor advisory
  16. 2026-09-14 23:16 UTCGHSA enrichment
  17. 2026-09-14 17:52 UTCVendor advisory
  18. 2026-09-14 17:52 UTCGHSA enrichment
  19. 2026-09-14 17:20 UTCVendor advisory
  20. 2026-09-14 17:20 UTCGHSA enrichment
  21. 2026-09-14 06:17 UTCVendor advisory
  22. 2026-09-14 06:17 UTCGHSA enrichment
  23. 2026-09-13 19:14 UTCEG score recompute
  24. 2026-09-13 19:14 UTCVendor advisory
  25. 2026-09-13 19:14 UTCGHSA enrichment
  26. 2026-09-13 08:10 UTCVendor advisory
  27. 2026-09-13 08:10 UTCGHSA enrichment
  28. 2026-09-12 21:08 UTCEG score recompute
  29. 2026-09-12 21:08 UTCVendor advisory
  30. 2026-09-12 21:08 UTCGHSA enrichment
  31. 2026-09-12 15:02 UTCEPSS rescore
  32. 2026-09-12 10:05 UTCVendor advisory
  33. 2026-09-12 10:05 UTCGHSA enrichment
  34. 2026-09-11 23:02 UTCVendor advisory
  35. 2026-09-11 23:02 UTCGHSA enrichment
  36. 2026-09-11 19:45 UTCVendor advisory
  37. 2026-09-11 19:45 UTCGHSA enrichment
  38. 2026-09-11 17:05 UTCEG score recompute
  39. 2026-09-11 17:05 UTCVendor advisory
  40. 2026-09-11 17:05 UTCGHSA enrichment
  41. 2026-09-11 14:53 UTCEPSS rescore
  42. 2026-09-11 10:43 UTCEG score recompute
  43. 2026-09-11 10:42 UTCGHSA enrichment
  44. 2026-09-10 23:39 UTCGHSA enrichment
  45. 2026-09-10 20:39 UTCGHSA enrichment
  46. 2026-09-10 09:35 UTCEG score recompute
  47. 2026-09-10 09:35 UTCGHSA enrichment
  48. 2026-09-10 09:35 UTCEPSS rescore
  49. 2026-09-09 22:32 UTCGHSA enrichment
  50. 2026-09-09 20:13 UTCEG score recompute
  51. 2026-09-09 20:13 UTCVendor advisory
  52. 2026-09-09 20:13 UTCGHSA enrichment
  53. 2026-09-09 19:32 UTCEG score recompute
  54. 2026-09-09 19:32 UTCVendor advisory
  55. 2026-09-09 19:31 UTCGHSA enrichment
  56. 2026-09-09 18:40 UTCEG score recompute
  57. 2026-09-09 18:40 UTCVendor advisory
  58. 2026-09-09 18:40 UTCGHSA enrichment
  59. 2026-09-09 11:13 UTCVendor advisory
  60. 2026-09-09 11:13 UTCGHSA enrichment
  61. 2026-09-09 00:10 UTCEG score recompute
  62. 2026-09-09 00:10 UTCVendor advisory
  63. 2026-09-09 00:10 UTCGHSA enrichment
  64. 2026-09-08 19:02 UTCEG score recompute
  65. 2026-09-08 19:02 UTCGHSA enrichment
  66. 2026-09-08 17:57 UTCEG score recompute
  67. 2026-09-08 17:57 UTCVendor advisory
  68. 2026-09-08 17:25 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-77500?
CVE-2026-77500 is a high vulnerability published on September 8, 2026. Release of invalid pointer or reference in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
When was CVE-2026-77500 disclosed?
CVE-2026-77500 was first published in the National Vulnerability Database on September 8, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77500 actively exploited?
CVE-2026-77500 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 74.0% of all scored CVEs.
What is the CVSS score of CVE-2026-77500?
CVE-2026-77500 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-77500?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77500, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-77500

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