CVE-2024-38126Network attack vector

Unauthenticated NAT interruption via null pointer dereference

Published Aug 13, 2024 · Updated Jul 10, 2025

NULL pointer dereference in Microsoft Windows NAT allows remote attackers to interrupt service availability via network traffic. Microsoft identifies the NAT component and CWE-476 but has not disclosed the specific routine, packet field, or unchecked pointer operation. No privileges or user interaction are required; the reported consequence is limited to availability, with no data exposure or modification.

CVSS severity7.5
High
EPSS probability2.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Microsoft Windows NAT allows remote attackers to interrupt service availability via network traffic. Microsoft identifies the NAT component and CWE-476 but has not disclosed the specific routine, packet field, or unchecked pointer operation. No privileges or user interaction are required; the reported consequence is limited to availability, with no data exposure or modification.

The record

CVE
CVE-2024-38126
Published
Aug 13, 2024
Updated
Jul 10, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-476, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2025Record 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.

  1. Affected versionversion=10.0.10240.0 <10.0.10240.20751

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.20751
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.6189
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.7259
Microsoft · Windows 11, version 24H2version=10.0.26100.0 <10.0.26100.1457
Microsoft · Windows 11 version 21H2version=10.0.0 <10.0.22000.3147
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19044.4780
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.1085
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.7259
Microsoft · Windows 11 Version 22H3version=10.0.22631.0 <10.0.22631.4037
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.4780
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.22134
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.6189
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.4037
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.4037
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.7259
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.2655
Microsoft · Windows 10 Version 1809version=10.0.17763.0 <10.0.17763.6189
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.22134

Published CVSS scores

7.5Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

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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