CVE-2022-22028Network attack vector

Remote information disclosure via NFS race condition

Published Jul 12, 2022 · Updated Jul 8, 2025

Information disclosure in NFS on affected Microsoft Windows Server releases allows remote attackers to read protected data over the network. The NFS service can expose protected data when concurrent requests win an unspecified race condition; Microsoft has not disclosed the affected routine or memory operation. No authentication or user interaction is required, but exploitation must win the race, and the published impact is limited to confidentiality.

CVSS severity5.9
Medium
EPSS probability2.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in NFS on affected Microsoft Windows Server releases allows remote attackers to read protected data over the network. The NFS service can expose protected data when concurrent requests win an unspecified race condition; Microsoft has not disclosed the affected routine or memory operation. No authentication or user interaction is required, but exploitation must win the race, and the published impact is limited to confidentiality.

The record

CVE
CVE-2022-22028
Published
Jul 12, 2022
Updated
Jul 8, 2025
Vendor
Microsoft
Product
Windows Server 2019
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 12, 2022CVE publishedPublication date reported by the CVE source.
  2. 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.

  1. Affected versionversion=10.0.17763.0 <10.0.17763.3165

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.3165
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.5246
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.23771
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.23771
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.5246
Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <6.1.7601.26022
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <6.1.7601.26022
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.20478
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.3165
Microsoft · Windows Server version 20H2version=10.0.0 <10.0.19042.1826
Microsoft · Windows Server 2008 Service Pack 2version=6.0.6003.0 <6.0.6003.21569
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.825
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.20478
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)version=6.0.6003.0 <6.0.6003.21569

Published CVSS scores

5.9MicrosoftCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
4.3NVDAV:N/AC:M/Au:N/C:P/I:N/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

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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