Unauthenticated remote memory disclosure
Published Aug 12, 2021 · Updated Aug 10, 2026
Information disclosure in Microsoft Windows Services for NFS allows remote attackers to read memory through ONCRPC XDR traffic. Microsoft has not published the driver locus or the operation that mishandles untrusted XDR input. The attack requires no privileges or user interaction and exposes memory contents without altering data or interrupting service.
Summary
What happened
Information disclosure in Microsoft Windows Services for NFS allows remote attackers to read memory through ONCRPC XDR traffic. Microsoft has not published the driver locus or the operation that mishandles untrusted XDR input. The attack requires no privileges or user interaction and exposes memory contents without altering data or interrupting service.
The record
- CVE
- CVE-2021-36926
- Published
- Aug 12, 2021
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- Unavailable
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 12, 2021CVE publishedPublication date reported by the CVE source.
- Aug 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.10240.0 <10.0.10240.19022
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
No sourced classifications are available.
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
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Your stack
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