Unauthenticated code execution via crafted NFSv3 calls
Published Jul 12, 2022 · Updated Jul 8, 2025
Remote code execution in Microsoft Windows Network File System allows remote attackers to execute code through an unauthenticated NFSv3 call. Microsoft has not published the affected function or the operation that mishandles the crafted request. The NFS server role with NFSv3 enabled must be reachable, and successful exploitation requires repeated attempts, but no user interaction.
Summary
What happened
Remote code execution in Microsoft Windows Network File System allows remote attackers to execute code through an unauthenticated NFSv3 call. Microsoft has not published the affected function or the operation that mishandles the crafted request. The NFS server role with NFSv3 enabled must be reachable, and successful exploitation requires repeated attempts, but no user interaction.
The record
- CVE
- CVE-2022-22029
- Published
- Jul 12, 2022
- Updated
- Jul 8, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- T1210
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 12, 2022CVE publishedPublication date reported by the CVE source.
- Jul 8, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.17763.0 <10.0.17763.3165
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo