CVE-2022-24497Network attack vector

Unauthenticated code execution via crafted NFS messages

Published Apr 15, 2022 · Updated Jan 2, 2025

Improper input validation in Windows Network File System allows remote attackers to execute arbitrary code through a crafted NFS message. Microsoft has not disclosed the exact NFS parser or invalid operation that mishandles the attacker-controlled message. The affected Windows system must have NFS functionality enabled; exploitation requires no authentication or user interaction and runs code with high privileges.

CVSS severity9.8
Critical
EPSS probability34.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Windows Network File System allows remote attackers to execute arbitrary code through a crafted NFS message. Microsoft has not disclosed the exact NFS parser or invalid operation that mishandles the attacker-controlled message. The affected Windows system must have NFS functionality enabled; exploitation requires no authentication or user interaction and runs code with high privileges.

The record

CVE
CVE-2022-24497
Published
Apr 15, 2022
Updated
Jan 2, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Jan 2, 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=10.0.10240.0 <10.0.10240.19265

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.19265
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.2803
Microsoft · Windows 10 Version 21H1version=10.0.0 <10.0.19043.1645
Microsoft · Windows 10 Version 1909version=10.0.0 <10.0.18363.2212
Microsoft · Windows 8.1version=6.3.0 <6.3.9600.20337
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.5066
Microsoft · Windows 11 version 21H2version=10.0.0 <10.0.22000.613
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.23679
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.23679
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19044.1645
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.5066
Microsoft · Windows 10 Version 20H2version=10.0.0 <10.0.19042.1645
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.20337
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.2803
Microsoft · Windows Server version 20H2version=10.0.0 <10.0.19042.1645
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.5066
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.643
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.2803; version=10.0.17763.0 <10.0.17763.2803
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.20337

Published CVSS scores

7.5NISTAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

T1210Exploitation of Remote Services

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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