CVE-2026-45586

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-09. 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: 4%CVSS: 7.8Exploit: None knownExposed: 0

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

Improper link resolution before file access ('link following') in Windows Collaborative Translation Framework allows an authorized attacker to elevate privileges locally.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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%
Exploitation4% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
89%
KEV
Not listed

Published

June 9, 2026

Last Modified

August 25, 2026

Advisory Details (1)

Auto-updated Jun 9, 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-2026-45586

Vendor Advisories for CVE-2026-45586(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 9× in last 7d / 54× 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 341 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-45586?
CVE-2026-45586 is a high vulnerability published on June 9, 2026. Improper link resolution before file access ('link following') in Windows Collaborative Translation Framework allows an authorized attacker to elevate privileges locally.
When was CVE-2026-45586 disclosed?
CVE-2026-45586 was first published in the National Vulnerability Database on June 9, 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-2026-45586 actively exploited?
CVE-2026-45586 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 11.1% of all scored CVEs.
What is the CVSS score of CVE-2026-45586?
CVE-2026-45586 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-45586?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45586, 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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