CVE-2025-33073
HIGH CISA KEV EPSS 99.1%
Published Jun 10, 20251y ago · Modified Jun 17, 20261w ago
8.8 CVSS 3.1
Published Jun 10, 2025 1y ago
Last Modified Jun 17, 2026 1w ago
KEV Listed Oct 20, 2025 8mo ago
KEV Due Nov 10, 2025 232d overdue
Description
Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
CISA Known Exploited Overdue 232d
- Added
- Oct 20, 2025
- Due
- Nov 10, 2025
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS Exploit Probability
99.1% percentile
Exploit & Patch Status
Actively Exploited (KEV)
No Patch Available
Weaknesses 1
CWE-284
Affected Products 21
| Vendor | Product | Version | Range |
|---|---|---|---|
| microsoft | windows_10_1507 | * | <10.0.10240.21034 |
| microsoft | windows_10_1507 | * | <10.0.10240.21034 |
| microsoft | windows_10_1607 | * | <10.0.14393.8148 |
| microsoft | windows_10_1607 | * | <10.0.14393.8148 |
| microsoft | windows_10_1809 | * | <10.0.17763.7434 |
| microsoft | windows_10_1809 | * | <10.0.17763.7434 |
| microsoft | windows_10_21h2 | * | <10.0.19044.5965 |
| microsoft | windows_10_22h2 | * | <10.0.19045.5965 |
| microsoft | windows_11_22h2 | * | <10.0.22621.5472 |
| microsoft | windows_11_23h2 | * | <10.0.22631.5472 |
| microsoft | windows_11_24h2 | * | <10.0.26100.4270 |
| microsoft | windows_server_2008 | * | any |
| microsoft | windows_server_2008 | * | any |
| microsoft | windows_server_2008 | r2 | any |
| microsoft | windows_server_2012 | * | any |
| microsoft | windows_server_2012 | r2 | any |
| microsoft | windows_server_2016 | * | <10.0.14393.8148 |
| microsoft | windows_server_2019 | * | <10.0.17763.7434 |
| microsoft | windows_server_2022 | * | <10.0.20348.3745 |
| microsoft | windows_server_2022_23h2 | * | <10.0.25398.1665 |
| microsoft | windows_server_2025 | * | <10.0.26100.4270 |
References 4
- msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-33073
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-33073
- vicarius.io https://www.vicarius.io/vsociety/posts/cve-2025-33073-detection-script-improper-access-control-in-windows-smb-affects-microsoft-products
- vicarius.io https://www.vicarius.io/vsociety/posts/cve-2025-33073-mitigation-script-improper-access-control-in-windows-smb-affects-microsoft-products
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.