EUVD-2026-73533
GHSA-5fhc-pv6v-qhwm
Severity by source
AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Network-reachable RDS requires low-privilege authentication (PR:L), non-trivial heap-shaping (AC:H), and victim interaction (UI:R); full system impact justified by UAF-to-RCE potential.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Use after free in Windows Remote Desktop Services allows an authorized attacker to execute code over a network.
AnalysisAI
Remote code execution in Windows Remote Desktop Services (RDS) is possible through a use-after-free memory condition exploitable by a network-authenticated, low-privilege attacker. Affected platforms span Windows Server 2025 and Windows 11 versions 23H2 through 26H1, with fixed builds specified per-release in the MSRC advisory. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) a valid low-privilege account on the target system or domain - the description's phrase 'authorized attacker' and the CVSS PR:L both confirm that unauthenticated access is insufficient; (2) some form of user interaction on the target system (UI:R) - the specific interaction type is not described in available data and cannot be characterized further; and (3) high attack complexity (AC:H), meaning the attacker must engineer a specific heap layout or timing condition for the UAF to yield code execution rather than a simple crash. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The 7.1 CVSS score accurately captures the trade-off between catastrophic impact (C:H/I:H/A:H) and genuine exploitation difficulty. … 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 Security Update for Windows addressing CVE-2026-69536. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows Server 2025 and Windows 11 (versions 23H2 through 26H1) systems running Remote Desktop Services to identify exposure scope and prioritize critical assets. …
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External POC / Exploit Code
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