CVE-2025-48802 Windows SMB Server Spoofing Vulnerability
An authorized attacker can spoof network communications due to improper certificate validation in Windows SMB Server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-48802?
CVE-2025-48802 is a medium-severity vulnerability in Microsoft Windows 11 22h2, published on 8 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.
Weakness: CWE-295
Which versions are affected by CVE-2025-48802?
It affects 4 products.
Products include Microsoft Windows 11 22h2, Microsoft Windows 11 23h2, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23h2.
How do I fix CVE-2025-48802?
No fix has been published for CVE-2025-48802 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-48802 being exploited?
There is no known exploitation of CVE-2025-48802 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 11 22h2
- CVE-2024-49117 Windows Hyper-V Remote Code Execution Vulnerability
- CVE-2024-21435 Windows OLE Remote Code Execution Vulnerability
- CVE-2025-24084 Windows Subsystem for Linux (WSL2) Kernel Remote Code Execution Vulnerability
- CVE-2025-33054 Remote Desktop Spoofing Vulnerability
- CVE-2025-29828 Windows Schannel Remote Code Execution Vulnerability
Sources
Also known as GHSA-32c4-pxr5-p8gv.