CVE-2025-33073

Published Jun 10, 2025

Last updated 5 months ago

Exploit known CVSS high 8.8

Windows SMB Client

Port (135)

Smb

Overview

Description: Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.
Source: secure@microsoft.com
NVD status: Modified
Products: windows_10_1507, windows_10_1607, windows_10_1809, windows_10_21h2, windows_10_22h2, windows_11_22h2, windows_11_23h2, windows_11_24h2, windows_server_2008, windows_server_2012, windows_server_2016, windows_server_2019, windows_server_2022, windows_server_2022_23h2, windows_server_2025

Risk scores

CVSS 3.1

Type: Secondary
Base score: 8.8
Impact score: 5.9
Exploitability score: 2.8
Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: HIGH

Known exploits

Data from CISA

Vulnerability name: Microsoft Windows SMB Client Improper Access Control Vulnerability
Exploit added on: Oct 20, 2025
Exploit action due: Nov 10, 2025
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weaknesses

secure@microsoft.com: CWE-284

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
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            "matchCriteriaId": "FCC2974E-F0F4-4F33-9CCE-2CEA45A3AD86",
            "versionEndExcluding": "10.0.10240.21034",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*",
            "matchCriteriaId": "A94EDBE2-AAFF-4E9A-A9E5-9B02ADB94471",
            "versionEndExcluding": "10.0.10240.21034",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*",
            "matchCriteriaId": "21CF85F1-CE6E-4AA2-B686-20766DB23D46",
            "versionEndExcluding": "10.0.14393.8148",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*",
            "matchCriteriaId": "10F0F3D2-00CD-4F52-B31E-DEA656DBD8B3",
            "versionEndExcluding": "10.0.14393.8148",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*",
            "matchCriteriaId": "F081F99C-6E6A-4AB2-8DE8-6457582D80D6",
            "versionEndExcluding": "10.0.17763.7434",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*",
            "matchCriteriaId": "7D9FCD92-0CED-43D3-87E0-630B80AC1A89",
            "versionEndExcluding": "10.0.17763.7434",
            "vulnerable": true
          },
          {
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            "matchCriteriaId": "A5667B11-7E10-4A08-89D2-253D682151C5",
            "versionEndExcluding": "10.0.19044.5965",
            "vulnerable": true
          },
          {
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            "matchCriteriaId": "A8CB6E81-62E0-4B19-ADE9-5ADB260CB960",
            "versionEndExcluding": "10.0.19045.5965",
            "vulnerable": true
          },
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            "versionEndExcluding": "10.0.22621.5472",
            "vulnerable": true
          },
          {
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            "versionEndExcluding": "10.0.22631.5472",
            "vulnerable": true
          },
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            "matchCriteriaId": "AA78F5F9-AEE3-423B-B82A-9ECEF2BDADF3",
            "versionEndExcluding": "10.0.26100.4270",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*",
            "matchCriteriaId": "2127D10C-B6F3-4C1D-B9AA-5D78513CC996",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*",
            "matchCriteriaId": "AB425562-C0A0-452E-AABE-F70522F15E1A",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*",
            "matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*",
            "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*",
            "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "A9B7111D-5C1D-415B-8ED4-F891B4832B18",
            "versionEndExcluding": "10.0.14393.8148",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "4E77CCA1-2FF6-429B-85A6-81E2B7C6B08F",
            "versionEndExcluding": "10.0.17763.7434",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "889A792E-8809-4A78-AABC-0567D025927A",
            "versionEndExcluding": "10.0.20348.3745",
            "vulnerable": true
          },
          {
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            "matchCriteriaId": "537E7AD5-0562-490B-AB16-0805F8865C74",
            "versionEndExcluding": "10.0.25398.1665",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "BD4BB5C4-1318-4006-9C50-0AED4E0C8A3F",
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            "vulnerable": true
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        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.

Overview

Risk scores

CVSS 3.1

Known exploits

Weaknesses

Social media

Configurations

Related CVEs

References