CVE-2023-35641

Adjacent code execution via crafted DHCP messages

Published Dec 12, 2023 · Updated Jan 1, 2025

Remote code execution in Windows Internet Connection Sharing allows adjacent remote attackers to execute code via crafted DHCP messages. The SharedAccess service's DHCP handling performs an incorrect calculation on a crafted message; Microsoft has not disclosed the exact calculation or memory operation. Internet Connection Sharing must be enabled, and the attacker must reach its private-network DHCP interface; successful exploitation executes code on the Windows host.

CVSS severity8.8
High
EPSS probability7.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in Windows Internet Connection Sharing allows adjacent remote attackers to execute code via crafted DHCP messages. The SharedAccess service's DHCP handling performs an incorrect calculation on a crafted message; Microsoft has not disclosed the exact calculation or memory operation. Internet Connection Sharing must be enabled, and the attacker must reach its private-network DHCP interface; successful exploitation executes code on the Windows host.

The record

CVE
CVE-2023-35641
Published
Dec 12, 2023
Updated
Jan 1, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-682, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 1, 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 <10.0.10240.20345

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.20345
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.5206
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.6529
Microsoft · Windows 11 version 21H2version=10.0.0 <10.0.22000.2652
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.24614
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.24614
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19041.3803
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.584
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.6529
Microsoft · Windows 11 Version 22H3version=10.0.22631.0 <10.0.22621.2861
Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <6.1.7601.26864
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <6.1.7601.26864
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.3803
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.21715
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.5206
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.2861
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.2861
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.6529
Microsoft · Windows Server 2008 Service Pack 2version=6.0.6003.0 <6.0.6003.22413
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.2159
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.5206; version=10.0.17763.0 <10.0.17763.5206
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.21715
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)version=6.0.6003.0 <6.0.6003.22413

Published CVSS scores

8.8Microsoft CorporationCVSS:3.1/AV:A/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-682Incorrect Calculation
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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