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CVE-2022-26937— Windows Network File System Remote Code Execution Vulnerability

Quick assessment

Affected
Microsoft Windows Server 2019
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Windows Network File System是美国微软（Microsoft）公司的一种文件共享解决方案，可让您使用 NFS 协议在运行 Windows Server 和 UNIX 操作系统的计算机之间传输文件。 Microsoft Windows Network File System存在输入验证错误漏洞。以下产品和版本受到影响：Windows Server 2019,Windows Server 2019 (Server Core installation),Windows

CVSS 9.8 · Critical EPSS 75.97% · P100

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-26937

Vulnerability Information
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Vulnerability Title
Windows Network File System Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows Network File System Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows Network File System 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Network File System是美国微软（Microsoft）公司的一种文件共享解决方案，可让您使用 NFS 协议在运行 Windows Server 和 UNIX 操作系统的计算机之间传输文件。 Microsoft Windows Network File System存在输入验证错误漏洞。以下产品和版本受到影响：Windows Server 2019,Windows Server 2019 (Server Core installation),Windows
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.2928 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.2928 -
Microsoft Windows Server 2022 10.0.20348.0 ~ 10.0.20348.707 -
Microsoft Windows Server version 20H2 10.0.0 ~ 10.0.19042.1706 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.5125 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.5125 -
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 ~ 6.0.6003.21481 -
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 ~ 6.0.6003.21481 -
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 ~ 6.0.6003.21481 -
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 ~ 6.1.7601.25954 -
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 ~ 6.1.7601.25954 -
Microsoft Windows Server 2012 6.2.9200.0 ~ 6.2.9200.23714 -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.23714 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.20371 -
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.20371 -

II. Public POCs for CVE-2022-26937

# POC Description Source Link Shenlong Link
1 A Zeek package to detect CVE-2022-26937, a vulnerability in the Network Lock Manager (NLM) protocol in Windows NFS server. https://github.com/corelight/CVE-2022-26937 POC Details
2 Windows Network File System Crash PoC https://github.com/omair2084/CVE-2022-26937 POC Details
3 POC Of CVE-2022-26937 https://github.com/Malwareman007/CVE-2022-26937 POC Details
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III. Intelligence Information for CVE-2022-26937

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Vendor Advisories for CVE-2022-26937 (2)

Same Patch Batch · Microsoft · 2022-05-10 · 73 CVEs total

CVE-2022-22012 9.8 CRITICAL Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2022-29130 9.8 CRITICAL Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2022-29108 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2022-29139 8.8 HIGH Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2022-22019 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2022-29141 8.8 HIGH Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2022-22014 8.8 HIGH Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2022-22013 8.8 HIGH Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2022-30129 8.8 HIGH Visual Studio Code Remote Code Execution Vulnerability
CVE-2022-22017 8.8 HIGH Remote Desktop Client Remote Code Execution Vulnerability
CVE-2022-26923 8.8 HIGH Active Directory Domain Services Elevation of Privilege Vulnerability
CVE-2022-29133 8.8 HIGH Windows Kernel Elevation of Privilege Vulnerability
CVE-2022-26927 8.8 HIGH Windows Graphics Component Remote Code Execution Vulnerability
CVE-2022-29131 8.8 HIGH Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2022-29129 8.8 HIGH Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2022-29128 8.8 HIGH Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2022-29137 8.8 HIGH Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2022-21978 8.2 HIGH Microsoft Exchange Server Elevation of Privilege Vulnerability
CVE-2022-26932 8.2 HIGH Storage Spaces Direct Elevation of Privilege Vulnerability
CVE-2022-21972 8.1 HIGH Windows Point-to-Point Tunneling Protocol Remote Code Execution Vulnerability

Showing top 20 of 73 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows Server 2019
Same vendor: Microsoft

V. Comments for CVE-2022-26937

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