ReviewHigh

CVE-2026-62823

Microsoft Windows 10 Version 1607, Windows 10 Version 1809, Windows Server 2012

Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over an adjacent network.

PRIORITY ASSESSMENT

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability-

Technical severityCVSS 8.8

Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over an adjacent network.

Product: Microsoft Windows 10 Version 1607, Windows 10 Version 1809, Windows Server 2012
Affected versions: >= 10.0.14393.0 < 10.0.14393.9418, >= 10.0.17763.0 < 10.0.17763.9121, >= 6.2.9200.0 < 6.2.9200.26280, >= 6.3.9600.0 < 6.3.9600.23338, >= 10.0.20348.0 < 10.0.20348.5499, >= 10.0.26100.0 < 10.0.26100.33296, < 10.0.17763.9115, r2, < 10.0.20348.5440, < 10.0.26100.33222
Fixed versions: Verify the fixed release separately for each affected product line

Confirm exposure before applying a vendor-supported change.

1
Identify
Confirm that Microsoft Windows 10 Version 1607, Windows 10 Version 1809, Windows Server 2012 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.