CVE-2026-45480

CRITICALPre-NVD 10.010.0
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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: the CNA's CVSS, EPSS, GitHub Security Advisory
Trending — 4 sources updated this week
10.0EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 10.0Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

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

CVSS v3
10.0
EG Score
10.0CRITICALmedium confidence
EG Risk
60
EG Risk 60/100

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 (value × EchelonGraph’s weight)
Severity100% × 45%
The EG Score, 10.0 of 10.
Exploitation0.9% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.9%
EPSS %ILE
58th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 19, 2026

Last Modified

September 24, 2026

Advisory Details (1)

Auto-updated Oct 8, 2026
Fix referenced — no release confirmed yet. Sources: microsoft.
MicrosoftMentions a patch (unverified)

Security Update Guide - Microsoft Security Response Center

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 19× in last 7d / 36× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 754 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 654 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  2. 2026-10-14 09:05 UTCEG score recompute
  3. 2026-10-14 09:05 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  4. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  5. 2026-10-13 05:56 UTCEG score recompute
  6. 2026-10-13 05:56 UTCVendor advisory
  7. 2026-10-13 05:56 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  8. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  9. 2026-10-12 16:04 UTCEG score recompute
  10. 2026-10-12 07:45 UTCVendor advisory
  11. 2026-10-12 07:45 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  12. 2026-10-11 19:46 UTCEG score recompute
  13. 2026-10-11 17:01 UTCEG score recompute
  14. 2026-10-11 14:26 UTCEG score recompute
  15. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  16. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  17. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  18. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  19. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  20. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  21. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  22. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  23. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  24. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  25. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.9% · 58th percentile
Show 75 more
  1. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  2. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  3. 2026-09-24 14:04 UTCEG score recompute
  4. 2026-09-24 14:04 UTCVendor advisory
  5. 2026-09-24 14:04 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  6. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  7. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  8. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  9. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  10. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  11. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  12. 2026-09-14 06:06 UTCVendor advisory
  13. 2026-09-14 06:06 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  14. 2026-09-14 02:12 UTCEG score recompute
  15. 2026-09-14 02:12 UTCVendor advisory
  16. 2026-09-14 02:12 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  17. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  18. 2026-09-13 13:00 UTCEG score recompute
  19. 2026-09-13 13:00 UTCVendor advisory
  20. 2026-09-13 13:00 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  21. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  22. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  23. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  24. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  25. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  26. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  27. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  28. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  29. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  30. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  31. 2026-08-31 00:39 UTCVendor advisory
  32. 2026-08-31 00:39 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  33. 2026-08-30 20:45 UTCEG score recompute
  34. 2026-08-30 20:45 UTCVendor advisory
  35. 2026-08-30 20:45 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  36. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  37. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  38. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  39. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  40. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  41. 2026-08-25 23:00 UTCEG score recompute
  42. 2026-08-25 23:00 UTCVendor advisory
  43. 2026-08-25 23:00 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  44. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  45. 2026-08-25 06:05 UTCVendor advisory
  46. 2026-08-25 06:05 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  47. 2026-08-25 02:10 UTCVendor advisory
  48. 2026-08-25 02:10 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  49. 2026-08-24 22:17 UTCVendor advisory
  50. 2026-08-24 22:17 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  51. 2026-08-24 15:34 UTCEG score recompute
  52. 2026-08-24 15:34 UTCVendor advisory
  53. 2026-08-24 15:34 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  54. 2026-08-24 13:59 UTCEG score recompute
  55. 2026-08-24 13:59 UTCVendor advisory
  56. 2026-08-24 13:59 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  57. 2026-08-24 05:03 UTCVendor advisory
  58. 2026-08-24 05:02 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  59. 2026-08-23 23:28 UTCVendor advisory
  60. 2026-08-23 23:28 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  61. 2026-08-23 19:35 UTCVendor advisory
  62. 2026-08-23 19:35 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  63. 2026-08-23 15:42 UTCVendor advisory
  64. 2026-08-23 15:42 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  65. 2026-08-23 11:48 UTCVendor advisory
  66. 2026-08-23 11:48 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  67. 2026-08-23 07:55 UTCVendor advisory
  68. 2026-08-23 07:55 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  69. 2026-08-23 03:34 UTCEG score recompute
  70. 2026-08-23 03:34 UTCVendor advisory
  71. 2026-08-23 03:34 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0
  72. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  73. 2026-08-22 23:13 UTCEG score recompute
  74. 2026-08-22 23:13 UTCVendor advisory
  75. 2026-08-22 23:13 UTCGHSA enrichmentGHSA-rfvj-frr3-5qvh · GitHub severity CRITICAL · GitHub CVSS 10.0

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-45480?
CVE-2026-45480 is a critical-severity vulnerability; its CVE record was 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 made public?
CVE-2026-45480 was made public on June 18, 2026: that is the date its CVE record's CNA, Microsoft Corporation, gives for when the vulnerability was made public. The CVE record itself was published on June 19, 2026. EchelonGraph's copy of the record carries a last-modified date of September 24, 2026; the record at its source may have been updated since.
Is CVE-2026-45480 actively exploited?
CVE-2026-45480 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (58th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-45480?
CVE-2026-45480 has a CVSS base score of 10.0 (the CNA's own assessment, by microsoft; NVD's own analysis pending).
How do I remediate CVE-2026-45480?
A fix for CVE-2026-45480 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-45480 are linked in the Vendor Advisories panel on this page.

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