CRITICAL
Windows DHCP Server Remote Code Execution Vulnerability
Published Sep 8, 2026
9.8
CRITICALCVSS 3.1
EPSS 1.02%
Description
Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
Affected products
-
- Version 10.0.14393.0StatusaffectedConstraints<10.0.14393.9512
- Version
-
- Version 10.0.17763.0StatusaffectedConstraints<10.0.17763.9245
- Version
-
- Version 6.2.9200.0StatusaffectedConstraints<6.2.9200.26349
- Version
-
- Version 6.2.9200.0StatusaffectedConstraints<6.2.9200.26349
- Version
-
- Version 6.3.9600.0StatusaffectedConstraints<6.3.9600.23398
- Version
-
- Version 6.3.9600.0StatusaffectedConstraints<6.3.9600.23398
- Version
-
- Version 10.0.14393.0StatusaffectedConstraints<10.0.14393.9512
- Version
-
- Version 10.0.14393.0StatusaffectedConstraints<10.0.14393.9512
- Version
-
- Version 10.0.17763.0StatusaffectedConstraints<10.0.17763.9245
- Version
-
- Version 10.0.17763.0StatusaffectedConstraints<10.0.17763.9245
- Version
-
- Version 10.0.20348.0StatusaffectedConstraints<10.0.20348.5622
- Version
-
- Version 10.0.26100.0StatusaffectedConstraints<10.0.26100.33438
- Version
-
- Version 10.0.26100.0StatusaffectedConstraints<10.0.26100.33438
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Windows 10 Version 1607 | n/a |
| ||||||
| Microsoft | Windows 10 Version 1809 | n/a |
| ||||||
| Microsoft | Windows Server 2012 | n/a |
| ||||||
| Microsoft | Windows Server 2012 (Server Core installation) | n/a |
| ||||||
| Microsoft | Windows Server 2012 R2 | n/a |
| ||||||
| Microsoft | Windows Server 2012 R2 (Server Core installation) | n/a |
| ||||||
| Microsoft | Windows Server 2016 | n/a |
| ||||||
| Microsoft | Windows Server 2016 (Server Core installation) | n/a |
| ||||||
| Microsoft | Windows Server 2019 | n/a |
| ||||||
| Microsoft | Windows Server 2019 (Server Core installation) | n/a |
| ||||||
| Microsoft | Windows Server 2022 | n/a |
| ||||||
| Microsoft | Windows Server 2025 | n/a |
| ||||||
| Microsoft | Windows Server 2025 (Server Core installation) | n/a |
|
OR
- < 10.0.14393.9512
- < 10.0.14393.9512
- < 10.0.17763.9245
- < 10.0.17763.9245
- n/a
- r2
- < 10.0.14393.9512
- < 10.0.17763.9245
- < 10.0.20348.5622
- < 10.0.26100.33438
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (2)
References (2)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-73628 Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69845 vendor-advisorypatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-73628 | Advisory | |
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69845 | vendor-advisorypatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Sep 8, 2026
Updated Oct 1, 2026
Reserved Aug 3, 2026
Link CVE-2026-69845
CISA Vulnrichment
Updated Sep 10, 2026
ENISA EUVD
EUVD-2026-73628 Assigner microsoft
Published Sep 8, 2026
Updated Oct 1, 2026
Exploited since n/a
Link EUVD-2026-73628