Severity by source
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Local trigger with no privileges or interaction (AV:L/AC:L/PR:N/UI:N); use-after-free code execution in the service yields full C/I/A impact within an unchanged scope.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Use after free in Windows DHCP Client allows an unauthorized attacker to execute code locally.
AnalysisAI
Local code execution in the Windows DHCP Client service stems from a use-after-free (CWE-416) memory-corruption flaw affecting a broad range of Windows 10, Windows 11, and Windows Server releases (Server 2012 through Server 2025). Per the CVSS vector an unauthenticated attacker with local access can achieve high-impact code execution with no user interaction. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local access to the target Windows system (AV:L) with the DHCP Client service running, which is its default state on virtually all Windows installations that obtain addressing dynamically. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals are mixed but lean toward a genuine patch-priority item. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has gained a local, unprivileged foothold on a Windows host (for example via a low-privilege account or prior malware execution) triggers the use-after-free in the DHCP Client service to corrupt heap memory and execute arbitrary code in the service's context, escalating impact on the machine. No user interaction and no elevated privileges are required per the CVSS vector, and low attack complexity means the trigger is reliable. … |
| Remediation | Patch available per vendor advisory - apply the Microsoft security update for CVE-2026-54128 for each affected SKU as documented at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54128, which is the primary and recommended fix. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 10, 11, and Windows Server (2012-2025) systems and identify mission-critical servers for priority patching. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Windows 10 Version 1607
View allLocal privilege escalation in Microsoft Active Directory Federation Services (AD FS) lets an already-authenticated low-p
Local privilege escalation in the Microsoft Windows Kernel allows an unauthorized attacker to gain elevated (SYSTEM-leve
Local privilege escalation in the Windows Win32K kernel subsystem (CWE-122 heap-based buffer overflow) lets an already-a
Local code execution in the Microsoft Message Queuing (MSMQ) Queue Manager affects a broad range of Windows client and s
Remote code execution in the Microsoft Windows DHCP Server role allows an unauthenticated network attacker to run arbitr
Elevation of privilege in the Windows NTFS file-system driver lets an already-authenticated local user escalate to SYSTE
Local code execution in the Windows Media component of supported Windows 10, Windows 11, and Windows Server (2016 throug
Elevation of privilege in the Windows Hyper-V virtual network switch (VMSwitch) lets an authenticated attacker operating
Remote code execution in the Windows Server Network driver stems from a race condition (CWE-362) that lets an unauthoriz
Remote code execution in Microsoft Windows Remote Desktop (RDP) allows an unauthorized network attacker to run arbitrary
Remote code execution in Microsoft Windows Message Queuing (MSMQ) allows an unauthenticated attacker to run arbitrary co
Remote code execution in the Microsoft Windows DHCP Server role allows an unauthenticated network attacker to run arbitr
Same weakness CWE-416 – Use After Free
View allSame technique Use After Free
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-44149
GHSA-jxff-hx2c-2gmw