CVE-2022-32230 SMBv3 FileNormalizedNameInformation NULL Pointer Dereference

What is CVE-2022-32230?

CVE-2022-32230 is a high-severity vulnerability in Microsoft Windows 10, published on 14 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Microsoft Windows SMBv3 suffers from a null pointer dereference in versions of Windows prior to the April, 2022 patch set. By sending a malformed FileNormalizedNameInformation SMBv3 request over a named pipe, an attacker can cause a Blue Screen of Death (BSOD) crash of the Windows kernel. For most systems, this attack requires authentication, except in the special case of Windows Domain Controllers, where unauthenticated users can always open named pipes as long as they can establish an SMB session. Typically, after the BSOD, the victim SMBv3 server will reboot.

Weakness: CWE-476

Which versions are affected by CVE-2022-32230?

It affects 3 products.

Products include Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows Server 2019.

How do I fix CVE-2022-32230?

No fix has been published for CVE-2022-32230 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-32230 being exploited?

There is no known exploitation of CVE-2022-32230 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Windows 10

• CVE-2015-2426 Microsoft Windows Adobe Type Manager Library Remote Code Execution Exploited High 8.8
• CVE-2015-1769 Microsoft Windows Mount Manager Privilege Escalation Exploited Medium 6.6
• CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability Critical 10.0
• CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability Critical 9.9
• CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability Critical 9.9

All Microsoft Windows 10 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-cgqq-pmpm-6gmx.