CVE-2022-38000Network attack vector

Remote code execution via PPTP race condition

Published Oct 11, 2022 · Updated Jan 2, 2025

A race condition in Microsoft Windows PPTP allows remote attackers to execute code by sending a crafted packet to a PPTP server. Microsoft identifies improper synchronization but has not disclosed the competing operations or shared state involved in the race. The target must expose PPTP server functionality, and exploitation requires winning the race; successful attacks can fully compromise it.

CVSS severity8.1
High
EPSS probability1.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A race condition in Microsoft Windows PPTP allows remote attackers to execute code by sending a crafted packet to a PPTP server. Microsoft identifies improper synchronization but has not disclosed the competing operations or shared state involved in the race. The target must expose PPTP server functionality, and exploitation requires winning the race; successful attacks can fully compromise it.

The record

CVE
CVE-2022-38000
Published
Oct 11, 2022
Updated
Jan 2, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-362, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 11, 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 <10.0.10240.19507

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.19507
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.3532
Microsoft · Windows 7version=6.1.0 <6.1.7601.26174
Microsoft · Windows 10 Version 21H1version=10.0.0 <10.0.19043.2130
Microsoft · Windows 8.1version=6.3.0 <6.3.9600.20625
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.5427
Microsoft · Windows 11 version 21H2version=10.0.0 <10.0.22000.1098
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.23920
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.23920
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19044.2130
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.5427
Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <6.1.7601.26174
Microsoft · Windows 10 Version 20H2version=10.0.0 <10.0.19042.2130
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <6.1.7601.26174
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.20625
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.3532
Microsoft · Windows 7 Service Pack 1version=6.1.0 <6.1.7601.26174
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.674
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.5427
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.1129
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.3532; version=10.0.17763.0 <10.0.17763.3532
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.20625

Published CVSS scores

8.1MicrosoftCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.3MicrosoftCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

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

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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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