CVE-2025-33073
HIGHCVSS 8.8/10Actively ExploitedEPSS 64.31%
Last modified
CVE-2025-33073 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.. CISA has confirmed active exploitation in the wild. EPSS estimates a 64.31% chance of exploitation in the next 30 days.
Description
Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Microsoft | Windows 10 1507 | < 10.0.10240.21034 | — |
| Microsoft | Windows 10 1607 | < 10.0.14393.8148 | — |
| 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 | All versions | Sp2 |
| Microsoft | Windows Server 2008 | r2 | Sp1 |
| Microsoft | Windows Server 2012 | All versions | — |
| Microsoft | Windows Server 2012 | r2 | — |
| 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
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-33073US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-33073?
Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.
How severe is CVE-2025-33073?
CVE-2025-33073 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 64.31% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2025-33073?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
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Are you affected by CVE-2025-33073?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST