CVE-2026-41858

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-04. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

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

Weak Randomness / Insecure Cryptographic Primitive (CWE-338) in Get-RandomPassword in BOSH-Ecosystem / windows-utilities-release allows a network attacker to estimate VM boot time and reconstruct a small candidate list to recover the Administrator password. The randomize_password job exists solely to lock the local Administrator account behind an unguessable password as a hardening control. Because the password is derived from a predictable, clock-seeded PRNG, a network attacker who can estimate VM boot time can reconstruct a small candidate list and recover the Administrator password, defeating the hardening control.

Affected versions:

  • windows-utilities-release: all versions prior to v0.23.0 (inclusive); fixed in v0.23.0 or later

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
15.6%
KEV
Not listed

Published

June 4, 2026

Last Modified

June 4, 2026

Advisory Details (1)

Auto-updated Jun 5, 2026
No patch confirmed yet.
generic

CVE-2026-41858 - Brute forceable windows admin creds | Cloud Foundry

https://www.cloudfoundry.org/blog/cve-2026-41858-brute-forceable-windows-admin-creds/

Vendor Advisories for CVE-2026-41858(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 16× in last 7d / 118× 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 164 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-41858?
CVE-2026-41858 is a high vulnerability published on June 4, 2026. Weak Randomness / Insecure Cryptographic Primitive (CWE-338) in Get-RandomPassword in BOSH-Ecosystem / windows-utilities-release allows a network attacker to estimate VM boot time and reconstruct a small candidate list to recover the Administrator password. The randomize_password job exists solely…
When was CVE-2026-41858 disclosed?
CVE-2026-41858 was first published in the National Vulnerability Database on June 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-41858 actively exploited?
CVE-2026-41858 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-41858?
CVE-2026-41858 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-41858?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-41858, 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.

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