CVE-2026-62916

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 53% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 4 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.

Authentication bypass using an alternate path or channel in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.

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
47%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 18, 2026

Advisory Details (1)

Auto-updated Sep 18, 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-2026-62916

Vendor Advisories for CVE-2026-62916(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 94× in last 7d / 219× 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 219 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-62916?
CVE-2026-62916 is a critical vulnerability published on September 3, 2026. Authentication bypass using an alternate path or channel in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.
When was CVE-2026-62916 disclosed?
CVE-2026-62916 was first published in the National Vulnerability Database on September 3, 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-2026-62916 actively exploited?
CVE-2026-62916 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 52.7% of all scored CVEs.
What is the CVSS score of CVE-2026-62916?
CVE-2026-62916 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-62916?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62916, 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-2026-62916

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