CVE-2026-45480

CRITICALPre-NVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-19. the CNA's CVSS baseline 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 10.0Exploit: None knownExposed: 0

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

Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.

CVSS v3
10.0
EG Score
10.0(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: 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
Severity100% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
57%
KEV
Not listed

Published

June 19, 2026

Last Modified

August 25, 2026

Advisory Details (1)

Auto-updated Aug 25, 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-2026-45480

Vendor Advisories for CVE-2026-45480(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 28× in last 7d / 279× 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 693 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-45480?
CVE-2026-45480 is a critical vulnerability published on June 19, 2026. Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
When was CVE-2026-45480 disclosed?
CVE-2026-45480 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45480 actively exploited?
CVE-2026-45480 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 43.3% of all scored CVEs.
What is the CVSS score of CVE-2026-45480?
CVE-2026-45480 has a CVSS v4.0 base score of 10.0 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-45480?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45480, 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

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