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CVE-2026-113773ImportantSpoofingNetwork

Windows DHCP Server Spoofing Vulnerability

MSRC advisory NVD CVE.org

Assessment

Improper access control in Windows DHCP Server allows an unauthorized attacker to perform spoofing over a network.

Severity
Important
CVSS base score
5.3
Impact
Spoofing
Exploitation detected
No known exploitation (MSRC assessment)
Exploitability
Exploitation Less Likely
Publicly disclosed
No (MSRC assessment)
EPSS · 30-day forecast
No EPSS score collected
Customer action
Required: follow the MSRC remediation guidance
More details
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C
Public detection template
No Nuclei template is listed in the current collected catalog
Component
Windows DHCP Server
Weakness
—
Issued by
Microsoft
Published
10 Nov 2026 · November 2026
Last revised
10 Nov 2026
CVSS 3.1 base metricsRed raises the risk · green lowers it
Attack vector
NetworkAV:N
Attack complexity
LowAC:L
Privileges required
NonePR:N
User interaction
NoneUI:N
Scope
UnchangedS:U
Confidentiality
NoneC:N
Integrity
LowI:L
Availability
NoneA:N

Updates that fix it

5 KBs
KBTypeRestartApplies toOther CVEs
KB5131077 Security Update—Windows Server 2025, Windows Server 2025 (Server Core installation)All CVEs in KB5131077
KB5131080 Security UpdateRequiredWindows Server 2025, Windows Server 2025 (Server Core installation)All CVEs in KB5131080
KB5131085 Security UpdateRequiredWindows Server 2019, Windows Server 2019 (Server Core installation)All CVEs in KB5131085
KB5131090 Security UpdateRequiredWindows Server 2022, Windows Server 2022 (Server Core installation)All CVEs in KB5131090
KB5131291 Security UpdateRequiredWindows Server 2016, Windows Server 2016 (Server Core installation)All CVEs in KB5131291
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An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

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