CVE-2026-59134

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 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
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0

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

Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVSS v3
8.1
EG Score
8.1(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
Severity81% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
47%
KEV
Not listed

Published

August 11, 2026

Last Modified

August 20, 2026

Advisory Details (1)

Auto-updated Aug 11, 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-2026-59134

Vendor Advisories for CVE-2026-59134(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 78× in last 7d / 130× 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 130 total refreshes for this CVE.

  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 22:04 UTCVendor advisory
  3. 2026-08-20 22:04 UTCGHSA enrichment
  4. 2026-08-20 16:45 UTCVendor advisory
  5. 2026-08-20 16:45 UTCGHSA enrichment
  6. 2026-08-20 15:06 UTCVendor advisory
  7. 2026-08-20 15:06 UTCGHSA enrichment
  8. 2026-08-20 14:15 UTCVendor advisory
  9. 2026-08-20 14:15 UTCGHSA enrichment
  10. 2026-08-20 10:24 UTCVendor advisory
  11. 2026-08-20 10:24 UTCGHSA enrichment
  12. 2026-08-19 21:18 UTCEG score recompute
  13. 2026-08-19 21:18 UTCVendor advisory
  14. 2026-08-19 21:18 UTCGHSA enrichment
  15. 2026-08-19 17:04 UTCEPSS rescore
  16. 2026-08-19 16:53 UTCVendor advisory
  17. 2026-08-19 16:53 UTCGHSA enrichment
  18. 2026-08-19 15:19 UTCVendor advisory
  19. 2026-08-19 15:19 UTCGHSA enrichment
  20. 2026-08-19 14:34 UTCVendor advisory
  21. 2026-08-19 14:33 UTCGHSA enrichment
  22. 2026-08-19 11:52 UTCVendor advisory
  23. 2026-08-19 11:52 UTCGHSA enrichment
  24. 2026-08-18 22:46 UTCVendor advisory
  25. 2026-08-18 22:46 UTCGHSA enrichment
Show 75 more
  1. 2026-08-18 22:01 UTCGHSA enrichment
  2. 2026-08-18 17:33 UTCVendor advisory
  3. 2026-08-18 17:32 UTCGHSA enrichment
  4. 2026-08-18 14:53 UTCEG score recompute
  5. 2026-08-18 14:53 UTCVendor advisory
  6. 2026-08-18 14:53 UTCGHSA enrichment
  7. 2026-08-18 13:48 UTCEPSS rescore
  8. 2026-08-18 07:04 UTCGHSA enrichment
  9. 2026-08-17 17:57 UTCVendor advisory
  10. 2026-08-17 17:57 UTCGHSA enrichment
  11. 2026-08-17 16:27 UTCEG score recompute
  12. 2026-08-17 16:27 UTCVendor advisory
  13. 2026-08-17 16:27 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 08:30 UTCVendor advisory
  16. 2026-08-17 08:30 UTCGHSA enrichment
  17. 2026-08-16 19:25 UTCVendor advisory
  18. 2026-08-16 19:25 UTCGHSA enrichment
  19. 2026-08-16 18:48 UTCVendor advisory
  20. 2026-08-16 18:48 UTCGHSA enrichment
  21. 2026-08-16 17:18 UTCVendor advisory
  22. 2026-08-16 17:18 UTCGHSA enrichment
  23. 2026-08-16 16:39 UTCEG score recompute
  24. 2026-08-16 16:39 UTCVendor advisory
  25. 2026-08-16 16:39 UTCGHSA enrichment
  26. 2026-08-16 14:56 UTCEPSS rescore
  27. 2026-08-16 13:22 UTCEG score recompute
  28. 2026-08-16 13:22 UTCVendor advisory
  29. 2026-08-16 13:22 UTCGHSA enrichment
  30. 2026-08-16 02:14 UTCEPSS rescore
  31. 2026-08-16 00:16 UTCVendor advisory
  32. 2026-08-16 00:16 UTCGHSA enrichment
  33. 2026-08-15 11:10 UTCEG score recompute
  34. 2026-08-15 11:10 UTCVendor advisory
  35. 2026-08-15 11:10 UTCGHSA enrichment
  36. 2026-08-15 01:30 UTCEPSS rescore
  37. 2026-08-14 22:04 UTCVendor advisory
  38. 2026-08-14 22:04 UTCGHSA enrichment
  39. 2026-08-14 21:19 UTCVendor advisory
  40. 2026-08-14 21:19 UTCGHSA enrichment
  41. 2026-08-14 20:28 UTCVendor advisory
  42. 2026-08-14 20:28 UTCGHSA enrichment
  43. 2026-08-14 18:56 UTCVendor advisory
  44. 2026-08-14 18:56 UTCGHSA enrichment
  45. 2026-08-14 17:35 UTCVendor advisory
  46. 2026-08-14 17:35 UTCGHSA enrichment
  47. 2026-08-14 16:49 UTCVendor advisory
  48. 2026-08-14 16:49 UTCGHSA enrichment
  49. 2026-08-14 16:30 UTCVendor advisory
  50. 2026-08-14 16:30 UTCGHSA enrichment
  51. 2026-08-14 06:08 UTCEG score recompute
  52. 2026-08-14 06:08 UTCVendor advisory
  53. 2026-08-14 06:08 UTCGHSA enrichment
  54. 2026-08-13 22:00 UTCEPSS rescore
  55. 2026-08-13 17:02 UTCVendor advisory
  56. 2026-08-13 17:02 UTCGHSA enrichment
  57. 2026-08-13 16:35 UTCVendor advisory
  58. 2026-08-13 16:35 UTCGHSA enrichment
  59. 2026-08-13 14:25 UTCEG score recompute▲ 0.60
  60. 2026-08-13 14:25 UTCVendor advisory
  61. 2026-08-13 14:25 UTCGHSA enrichment
  62. 2026-08-13 14:20 UTCNVD updateCVSS v3 → 8.1
  63. 2026-08-13 07:24 UTCVendor advisory
  64. 2026-08-13 07:24 UTCGHSA enrichment
  65. 2026-08-12 18:16 UTCVendor advisory
  66. 2026-08-12 18:16 UTCGHSA enrichment
  67. 2026-08-12 14:49 UTCEG score recompute
  68. 2026-08-12 14:49 UTCVendor advisory
  69. 2026-08-12 14:49 UTCGHSA enrichment
  70. 2026-08-12 14:27 UTCEG score recompute
  71. 2026-08-12 14:27 UTCVendor advisory
  72. 2026-08-12 14:27 UTCGHSA enrichment
  73. 2026-08-12 14:02 UTCEG score recompute
  74. 2026-08-12 14:02 UTCVendor advisory
  75. 2026-08-12 14:02 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-59134?
CVE-2026-59134 is a high vulnerability published on August 11, 2026. Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
When was CVE-2026-59134 disclosed?
CVE-2026-59134 was first published in the National Vulnerability Database on August 11, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59134 actively exploited?
CVE-2026-59134 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-2026-59134?
CVE-2026-59134 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-59134?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59134, 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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