CVE-2024-38239Network attack vector

Privilege escalation through undisclosed Kerberos flaw

Published Sep 10, 2024 · Updated Aug 10, 2026

Weak authentication in Microsoft Windows Kerberos allows remote authenticated users with high privileges to elevate privileges over a network. Microsoft has not disclosed the Kerberos locus or the authentication operation that mishandles untrusted input. The attacker must already hold high privileges and network reachability; the resulting privilege boundary and elevated identity remain unspecified.

CVSS severity7.2
High
EPSS probability1.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak authentication in Microsoft Windows Kerberos allows remote authenticated users with high privileges to elevate privileges over a network. Microsoft has not disclosed the Kerberos locus or the authentication operation that mishandles untrusted input. The attacker must already hold high privileges and network reachability; the resulting privilege boundary and elevated identity remain unspecified.

The record

CVE
CVE-2024-38239
Published
Sep 10, 2024
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-1390, T1068
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record 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 <10.0.10240.20766

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.20766
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.6293
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.7336
Microsoft · Windows 11, version 24H2version=10.0.26100.0 <10.0.26100.1742
Microsoft · Windows 11 version 21H2version=10.0.0 <10.0.22000.3197
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.25073
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.25073
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19044.4894
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.1128
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.7336
Microsoft · Windows 11 Version 22H3version=10.0.22631.0 <10.0.22631.4169
Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <6.1.7601.27320
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <6.1.7601.27320
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.4894
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.22175
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.6293
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.4169
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.4169
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.7336
Microsoft · Windows Server 2008 Service Pack 2version=6.0.6003.0 <6.0.6003.22870
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.2700
Microsoft · Windows 10 Version 1809version=10.0.17763.0 <10.0.17763.6293
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.22175
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)version=6.0.6003.0 <6.0.6003.22870

Published CVSS scores

7.2MicrosoftCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1390Weak Authentication
T1068Exploitation for Privilege Escalation

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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