Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2022-32230

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.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 3 products from microsoft, from microsoft, from microsoft organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2022-06-14T22:15:10.450

Last Modified

2024-11-21T07:05:58.290

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

6.9

Weaknesses

Type: Secondary
CWE-476
Type: Primary
CWE-476

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	microsoft	windows_10	20h2	Yes
Operating System	microsoft	windows_10	21h1	Yes
Operating System	microsoft	windows_10	21h2	Yes
Operating System	microsoft	windows_10	1809	Yes
Operating System	microsoft	windows_11	-	Yes
Operating System	microsoft	windows_server_2019	-	Yes

References

https://github.com/zeroSteiner/metasploit-framework/blob/feat/mod/cve-2022-32230/modules/auxiliary/dos/smb/smb_filenormalizednameinformation.rb Exploit, Third Party Advisory ([email protected])
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-32230 Patch, Vendor Advisory ([email protected])
https://support.microsoft.com/en-us/topic/may-10-2022-kb5013942-os-builds-19042-1706-19043-1706-and-19044-1706-60b51119-85be-4a34-9e21-8954f6749504 Patch, Vendor Advisory ([email protected])
https://www.rapid7.com/blog/post/2022/06/14/cve-2022-32230-windows-smb-denial-of-service-vulnerability-fixed/ Exploit, Third Party Advisory ([email protected])
https://github.com/zeroSteiner/metasploit-framework/blob/feat/mod/cve-2022-32230/modules/auxiliary/dos/smb/smb_filenormalizednameinformation.rb Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-32230 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.microsoft.com/en-us/topic/may-10-2022-kb5013942-os-builds-19042-1706-19043-1706-and-19044-1706-60b51119-85be-4a34-9e21-8954f6749504 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.rapid7.com/blog/post/2022/06/14/cve-2022-32230-windows-smb-denial-of-service-vulnerability-fixed/ Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For microsoft's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.