EUVD-2026-73470
GHSA-v7gj-xr3c-vxhf
Severity by source
AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Client-side RDP attack requires victim to initiate connection (UI:R), low-privilege authorized user (PR:L), and server-side preconditions (AC:H); full triad impact on the connecting client.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Use of uninitialized resource in Remote Desktop Client allows an authorized attacker to execute code over a network.
AnalysisAI
Remote code execution in Windows Remote Desktop Client allows an authorized network attacker to fully compromise a victim's client machine by exploiting use of an uninitialized resource (CWE-908) during an RDP session with a malicious server. Every major Windows client and server release - Windows 10/11 in all currently-supported feature versions and Windows Server 2016 through 2025 including Server Core - is affected below specific cumulative update build thresholds. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a victim user with at least low-level credentials (PR:L per CVSS) to actively initiate a Remote Desktop Connection (UI:R) to an attacker-controlled or compromised RDP server over a network path (AV:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.1 score accurately captures a meaningful but exploitation-constrained risk: the C:H/I:H/A:H triad indicates full client-machine compromise if the attack succeeds, yet AC:H and UI:R impose real friction - an attacker must both operate or subvert an RDP server reachable by the victim and induce that victim (who must hold at least low-level credentials, PR:L) to initiate a connection to it. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the Microsoft cumulative updates that advance affected builds to or above their respective fixed thresholds: Windows 10/Server 2016 (1607) to 10.0.14393.9512 or later; Windows 10/Server 2019 (1809) to 10.0.17763.9245 or later; Windows 10 21H2 to 10.0.19044.7725 or later; Windows 10 22H2 to 10.0.19045.7725 or later; Windows Server 2022 to 10.0.20348.5622 or later; Windows 11 23H2 to 10.0.22631.7582 or later; Windows 11 24H2 and Server 2025 to 10.0.26100.9445 (client) / 10.0.26100.33438 (server) or later; Windows 11 25H2 to 10.0.26200.9445 or later; Windows 11 26H1 to 10.0.28000.2954 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, obtain the MSRC update guidance from Microsoft and inventory all Windows 10, 11, and Server 2016-2025 systems in your environment to identify those below the required cumulative update build thresholds. …
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Same weakness CWE-908 – Use of Uninitialized Resource
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External POC / Exploit Code
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