CVE-2022-26937
CVE-2022-26937 is a critical-severity vulnerability in Microsoft Windows Server with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 77% places it in the 99th percentile, indicating an elevated likelihood of exploitation.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 77% (99th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Microsoft Windows Server
- Published:
- Last modified:
Description
Windows Network File System Remote Code Execution Vulnerability
Frequently asked questions
- What is CVE-2022-26937?
- Windows Network File System Remote Code Execution Vulnerability
- How severe is CVE-2022-26937?
- CVE-2022-26937 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-26937 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 77% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-26937?
- CVE-2022-26937 primarily affects Microsoft Windows Server. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2022-26937?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2022-26937 published?
- CVE-2022-26937 was published on 2022-05-10 and last updated on 2026-06-17.
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26937
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-26937
Affected products (10)
- cpe:2.3:o:microsoft:windows_server:20h2:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_server_2008:sp2:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_server_2008:sp2:*:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
More vulnerabilities in Microsoft Windows Server
- CVE-2009-0568 — Critical (CVSS 10.0): The RPC Marshalling Engine (aka NDR) in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1,…
- CVE-2022-29130 — Critical (CVSS 9.8): Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
- CVE-2022-22012 — Critical (CVSS 9.8): Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
- CVE-2022-21907 — Critical (CVSS 9.8): HTTP Protocol Stack Remote Code Execution Vulnerability
- CVE-2022-21849 — Critical (CVSS 9.8): Windows Internet Key Exchange (IKE) Protocol Extensions Remote Code Execution Vulnerability
- CVE-2021-43215 — Critical (CVSS 9.8): iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution