CVE-2026-113863: Windows DHCP Client Elevation of Privilege Vulnerability
Published Nov 10, 2026
·Updated
Heap-based buffer overflow in Windows DHCP Client allows an unauthorized attacker to elevate privileges over an adjacent network.
Other sources
Windows DHCP Client Elevation of Privilege Vulnerability
— Microsoft
Affected Software
8 affected componentsFixes available
Microsoft Windows 11=24H2, >=10.0.26100<10.0.26100.9974, >=10.0.26100<10.0.26100.9911
10.0.26100.997410.0.26100.9911
Microsoft Windows 11=25H2, >=10.0.26200<10.0.26200.9974, >=10.0.26200<10.0.26200.9911
10.0.26200.997410.0.26200.9911
Microsoft Windows 11=26H2, >=10.0.26300<10.0.26300.9974, >=10.0.26300<10.0.26300.9911
10.0.26300.997410.0.26300.9911
Microsoft Windows 11=26H2, >=10.0.26300<10.0.26300.9974, >=10.0.26300<10.0.26300.9911
10.0.26300.997410.0.26300.9911
Microsoft Windows 11=26H1, >=10.0.28000<10.0.28000.3501
10.0.28000.3501
Microsoft Windows 11=26H1, >=10.0.28000<10.0.28000.3501
10.0.28000.3501
Microsoft Windows 11=24H2, >=10.0.26100<10.0.26100.9974, >=10.0.26100<10.0.26100.9911
10.0.26100.997410.0.26100.9911
Microsoft Windows 11=25H2, >=10.0.26200<10.0.26200.9974, >=10.0.26200<10.0.26200.9911
10.0.26200.997410.0.26200.9911
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9974Fixed in 10.0.26100.9911Patch KB5132043 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9974Fixed in 10.0.26200.9911Patch KB5132043 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26300.9974Fixed in 10.0.26300.9911Patch KB5132043 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.3501Patch KB5132059
Event History
Nov 10, 2026
CVE Published
via Microsoft·04:00 PM
Data Sourced
via Microsoft·04:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·04:00 PM
Affected Software
CVE Published
via MITRE·06:19 PM
Data Sourced
via MITRE·06:19 PM
DescriptionSeverity
Data Sourced
via NVD·07:19 PM
DescriptionSeverityWeakness