CVE-2026-69876 - Windows DHCP Server Remote Code Execution Vulnerability

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HIGH

Windows DHCP Server Remote Code Execution Vulnerability

Published Sep 8, 2026

8.0

HIGH

CVSS 3.1

EPSS 0.58%

Description

Use after free in Windows DHCP Server allows an authorized attacker to execute code over an adjacent network.

Affected products

Vendor Microsoft Product Windows 10 Version 1607 Default
unknown
Affected
- ≥ 10.0.14393.0, < 10.0.14393.9512
Vendor Microsoft Product Windows 10 Version 1809 Default
unknown
Affected
- ≥ 10.0.17763.0, < 10.0.17763.9245
Vendor Microsoft Product Windows Server 2012 Default
unknown
Affected
- ≥ 6.2.9200.0, < 6.2.9200.26349
Vendor Microsoft Product Windows Server 2012 (Server Core installation) Default
unknown
Affected
- ≥ 6.2.9200.0, < 6.2.9200.26349
Vendor Microsoft Product Windows Server 2012 R2 Default
unknown
Affected
- ≥ 6.3.9600.0, < 6.3.9600.23398
Vendor Microsoft Product Windows Server 2012 R2 (Server Core installation) Default
unknown
Affected
- ≥ 6.3.9600.0, < 6.3.9600.23398
Vendor Microsoft Product Windows Server 2016 Default
unknown
Affected
- ≥ 10.0.14393.0, < 10.0.14393.9512
Vendor Microsoft Product Windows Server 2016 (Server Core installation) Default
unknown
Affected
- ≥ 10.0.14393.0, < 10.0.14393.9512
Vendor Microsoft Product Windows Server 2019 Default
unknown
Affected
- ≥ 10.0.17763.0, < 10.0.17763.9245
Vendor Microsoft Product Windows Server 2019 (Server Core installation) Default
unknown
Affected
- ≥ 10.0.17763.0, < 10.0.17763.9245
Vendor Microsoft Product Windows Server 2022 Default
unknown
Affected
- ≥ 10.0.20348.0, < 10.0.20348.5622
Vendor Microsoft Product Windows Server 2025 Default
unknown
Affected
- ≥ 10.0.26100.0, < 10.0.26100.33438
Vendor Microsoft Product Windows Server 2025 (Server Core installation) Default
unknown
Affected
- ≥ 10.0.26100.0, < 10.0.26100.33438

Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).

Vendor	Product	Default status	Versions
Microsoft	Windows 10 Version 1607	unknown	Affected ≥ 10.0.14393.0, < 10.0.14393.9512
Microsoft	Windows 10 Version 1809	unknown	Affected ≥ 10.0.17763.0, < 10.0.17763.9245
Microsoft	Windows Server 2012	unknown	Affected ≥ 6.2.9200.0, < 6.2.9200.26349
Microsoft	Windows Server 2012 (Server Core installation)	unknown	Affected ≥ 6.2.9200.0, < 6.2.9200.26349
Microsoft	Windows Server 2012 R2	unknown	Affected ≥ 6.3.9600.0, < 6.3.9600.23398
Microsoft	Windows Server 2012 R2 (Server Core installation)	unknown	Affected ≥ 6.3.9600.0, < 6.3.9600.23398
Microsoft	Windows Server 2016	unknown	Affected ≥ 10.0.14393.0, < 10.0.14393.9512
Microsoft	Windows Server 2016 (Server Core installation)	unknown	Affected ≥ 10.0.14393.0, < 10.0.14393.9512
Microsoft	Windows Server 2019	unknown	Affected ≥ 10.0.17763.0, < 10.0.17763.9245
Microsoft	Windows Server 2019 (Server Core installation)	unknown	Affected ≥ 10.0.17763.0, < 10.0.17763.9245
Microsoft	Windows Server 2022	unknown	Affected ≥ 10.0.20348.0, < 10.0.20348.5622
Microsoft	Windows Server 2025	unknown	Affected ≥ 10.0.26100.0, < 10.0.26100.33438
Microsoft	Windows Server 2025 (Server Core installation)	unknown	Affected ≥ 10.0.26100.0, < 10.0.26100.33438

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-415

CWE-416

Use After Free

References (2)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-73627
Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69876
vendor-advisorypatchVendor Advisory

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-73627		Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69876		vendor-advisorypatchVendor Advisory

Change history (1)

Oct 7, 2026, 22:29 UTC EUVD
- Updated
  changed from Oct 1, 2026 to Oct 7, 2026

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner microsoft

Published Sep 8, 2026

Updated Oct 7, 2026

Reserved Aug 3, 2026

Link CVE-2026-69876

CISA Vulnrichment

Updated Sep 9, 2026

NVD

Status Analyzed

Modified Sep 10, 2026

Link CVE-2026-69876

Red Hat

No data

ENISA EUVD

Assigner microsoft

Published Sep 8, 2026

Updated Oct 7, 2026

Link EUVD-2026-73627

GitHub

No data