CVE-2022-30211Network attack vector

Remote code execution through crafted L2TP traffic

Published Jul 12, 2022 · Updated Jul 8, 2025

Windows L2TP in affected Windows releases allows remote authenticated users to execute code through crafted L2TP traffic. Microsoft has not published the faulty function, memory operation, or input-validation failure within the L2TP implementation. Exploitation requires L2TP reachability, low privileges, and repeated constant or intermittent traffic; successful attacks gain code execution on the target.

CVSS severity7.5
High
EPSS probability2.01%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Windows L2TP in affected Windows releases allows remote authenticated users to execute code through crafted L2TP traffic. Microsoft has not published the faulty function, memory operation, or input-validation failure within the L2TP implementation. Exploitation requires L2TP reachability, low privileges, and repeated constant or intermittent traffic; successful attacks gain code execution on the target.

The record

CVE
CVE-2022-30211
Published
Jul 12, 2022
Updated
Jul 8, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
T1210
Attack vector
network
Privileges
authenticated

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=10.0.10240.0 <10.0.10240.19360

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.19360
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.3165
Microsoft · Windows 7version=6.1.0 <6.1.7601.26022
Microsoft · Windows 10 Version 21H1version=10.0.0 <10.0.19043.1826
Microsoft · Windows 8.1version=6.3.0 <6.3.9600.20478
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.5246
Microsoft · Windows 11 version 21H2version=10.0.0 <10.0.22000.795
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 10 Version 21H2version=10.0.19043.0 <10.0.19044.1826
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 10 Version 20H2version=10.0.0 <10.0.19042.1826
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 7 Service Pack 1version=6.1.0 <6.1.7601.26022
Microsoft · Windows Server version 20H2version=10.0.0 <10.0.19042.1826
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.5246
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 10 Version 1809version=10.0.0 <10.0.17763.3165; version=10.0.17763.0 <10.0.17763.3165
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

7.5MicrosoftCVSS:3.1/AV:N/AC:H/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
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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