CVE-2025-33073 Microsoft Windows SMB Client Improper Access Control
An authorized attacker can elevate privileges over the network via improper access control in the Windows SMB client.
- Exploited in the wild
- Since 20 Oct 2025
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-33073?
CVE-2025-33073 is a high-severity vulnerability in Microsoft Windows 10 1507, published on 10 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.
Weakness: CWE-284
Which versions are affected by CVE-2025-33073?
It affects 15 products.
Linux distribution packages (1)
python-impacket openSUSE:Tumbleweed | All versions | 0.13.1-1.1 |
Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 22h2 and 9 more.
How do I fix CVE-2025-33073?
Apply the vendor's patch. US federal agencies must fix it by 10 Nov 2025.
Is CVE-2025-33073 being exploited?
Yes. Attackers have exploited CVE-2025-33073 in the wild since at least 20 Oct 2025.
Public exploit code: 1 Exploit-DB entry and 11 proofs of concept on GitHub.
Other vulnerabilities in Microsoft Windows 10 1507
- CVE-2017-8543 Microsoft Windows Search Remote Code Execution
- CVE-2025-33053 Microsoft Windows External Control of File Name or Path
- CVE-2024-49039 Microsoft Windows Task Scheduler Privilege Escalation
- CVE-2024-43461 Microsoft Windows MSHTML Platform Spoofing
- CVE-2024-30040 Microsoft Windows MSHTML Platform Security Feature Bypass
Sources
Also known as GHSA-cfjg-2jr6-cgph, openSUSE-SU-2026:10837-1.