CVE-2026-55201

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

Score 6.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-17. a secondary CVSS source baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.8Exploit: None knownExposed: 0

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

Evil-WinRM through 3.9, fixed in commit 6ecd570, contains a path traversal vulnerability in the download_dir() function that allows a rogue or compromised remote Windows server to write files outside the intended download directory by returning filenames with traversal sequences from Get-ChildItem command output that are passed unsanitized to File.join(). Attackers controlling the remote server can exploit this to overwrite sensitive client-side files such as SSH authorized_keys or shell configuration files, achieving persistent access or privilege escalation on the client machine.

CVSS v3
6.8
EG Score
6.8(medium)
EG Risk
31(Track)
EG Risk 31/100SSVC: 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
Severity68% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

June 17, 2026

Last Modified

July 14, 2026

Advisory Details (3)

Auto-updated Jun 17, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit, github_pr.
generic

Evil-WinRM - Path Traversal in download_dir() Function | Advisories | VulnCheck

https://www.vulncheck.com/advisories/evil-winrm-path-traversal-in-download-dir-function
github_pr

Fix path traversal in download_dir via server-controlled filenames

Fix merged in Hackplayers/evil-winrm PR #81 on 2026-06-01 — awaiting tagged release

https://github.com/Hackplayers/evil-winrm/pull/81
github_commit

commit 6ecd570a2985 (Hackplayers/evil-winrm)

Fix landed in Hackplayers/evil-winrm commit 6ecd570a2985 — awaiting tagged release

https://github.com/Hackplayers/evil-winrm/commit/6ecd570a298562dc72ad73978307eb34182f5850

Vendor Advisories for CVE-2026-55201(1)

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 7× in last 7d / 39× 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 184 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-55201?
CVE-2026-55201 is a medium vulnerability published on June 17, 2026. Evil-WinRM through 3.9, fixed in commit 6ecd570, contains a path traversal vulnerability in the downloaddir() function that allows a rogue or compromised remote Windows server to write files outside the intended download directory by returning filenames with traversal sequences from Get-ChildItem…
When was CVE-2026-55201 disclosed?
CVE-2026-55201 was first published in the National Vulnerability Database on June 17, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55201 actively exploited?
CVE-2026-55201 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 76.9% of all scored CVEs.
What is the CVSS score of CVE-2026-55201?
CVE-2026-55201 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2026-55201?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55201, 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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