CVE-2026-58594

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.8%, top 44% 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.

Integer overflow or wraparound in Windows RDP allows an unauthorized attacker to execute code over a network.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
56%
KEV
Not listed

Published

July 14, 2026

Last Modified

September 17, 2026

Advisory Details (1)

Auto-updated Sep 17, 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-2026-58594

Vendor Advisories for CVE-2026-58594(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 24× in last 7d / 177× 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 598 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-58594?
CVE-2026-58594 is a critical vulnerability published on July 14, 2026. Integer overflow or wraparound in Windows RDP allows an unauthorized attacker to execute code over a network.
When was CVE-2026-58594 disclosed?
CVE-2026-58594 was first published in the National Vulnerability Database on July 14, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58594 actively exploited?
CVE-2026-58594 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 44.3% of all scored CVEs.
What is the CVSS score of CVE-2026-58594?
CVE-2026-58594 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-58594?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58594, 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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