CVE-2025-33073

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-10-20), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 83%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pct · epss high · public exploitExposed: 0

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

Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.

CVSS v3
8.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
83%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

June 10, 2025

Last Modified

October 27, 2025

Advisory Details (4)

Auto-updated Jun 2, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: microsoft, cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-33073
generic🔴 Active Exploitation

CVE-2025-33073 Mitigation Script - Improper Access Control in Windows SMB Affects Microsoft Products - vsociety

https://www.vicarius.io/vsociety/posts/cve-2025-33073-mitigation-script-improper-access-control-in-windows-smb-affects-microsoft-products
generic🔴 Active Exploitation

CVE-2025-33073 Detection Script - Improper Access Control in Windows SMB Affects Microsoft Products - vsociety

https://www.vicarius.io/vsociety/posts/cve-2025-33073-detection-script-improper-access-control-in-windows-smb-affects-microsoft-products
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-2025-33073

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 99× in last 7d / 412× 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 1,515 total refreshes for this CVE.

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

Publicly available exploits

(6 references)

Working exploit code is in the public domain (5 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCEgCupCake/cupntlm-Automated-Exploit-For-CVE-2025-33073-
    First seen Mar 9, 2026

    cupntlm

    Open source ↗
  • GitHub PoCuziii2208/CVE-2025-33073
    First seen Nov 14, 2025

    Universal exploitation tool for CVE-2025-33073 targeting Windows Domain Controllers with DNSAdmins privileges and WinRM enabled.

    Open source ↗
  • GitHub PoCuziii2208/come-to-telegram-rickluminari1--CVE-2025-33073
    First seen Nov 14, 2025

    Universal exploitation tool for CVE-2025-33073 targeting Windows Domain Controllers with DNSAdmins privileges and WinRM enabled.

    Open source ↗
  • GitHub PoCSFRDevelopment/windows-smb-vulnerability-framework-cve-2025-33073
    First seen Oct 18, 2025

    Proof-of-Concept

    Open source ↗
  • Exploit-DBEDB-52330
    First seen Jun 15, 2025

    Windows 11 SMB Client - Privilege Escalation & Remote Code Execution (RCE)

    Open source ↗
  • GitHub PoCmverschu/CVE-2025-33073
    First seen Jun 13, 2025

    PoC Exploit for the NTLM reflection SMB flaw.

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2025-33073?
CVE-2025-33073 is a critical vulnerability published on June 10, 2025. Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.
When was CVE-2025-33073 disclosed?
CVE-2025-33073 was first published in the National Vulnerability Database on June 10, 2025, with the most recent update on October 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-33073 actively exploited?
Yes. CISA added CVE-2025-33073 to the Known Exploited Vulnerabilities catalog on October 20, 2025, affecting Microsoft Windows. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2025-33073?
CVE-2025-33073 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2025-33073?
CVE-2025-33073 affects Microsoft Windows. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2025-33073?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-33073, 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

Explore the affected products and dependency analysis for CVE-2025-33073

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