EUVD-2026-73681
GHSA-w282-mv4w-84h4
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Local access with low privilege required; high complexity reflects race condition; full C/I/A impact post SYSTEM escalation; no scope change.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Use after free in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
AnalysisAI
Use-after-free in Windows Remote Desktop Services enables a low-privileged local attacker to escalate privileges to SYSTEM on affected Windows hosts. The vulnerability spans Windows Server 2012 through Windows 11 26H1 and Windows Server 2025, making the attack surface extremely broad across enterprise fleets. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid user account with local logon or RDS logon rights on the target Windows system (PR:L - the description specifies an 'authorized attacker'). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 7.0 reflects meaningful real-world constraints: AV:L limits exploitation to actors already present on the machine, and AC:H means the race or heap-state condition must be reliably crafted - not a push-button exploit. … 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 Microsoft's security update for the affected Windows version via Windows Update, WSUS, or Microsoft Update Catalog. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows Server instances (versions 2012 through 2025) and Windows 11 devices running version 26H1 in your environment, prioritizing systems providing remote desktop access to critical operations or data. …
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Same weakness CWE-416 – Use After Free
View allSame technique Privilege Escalation
View allShare
External POC / Exploit Code
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