EUVD-2026-73117
GHSA-x25h-2587-jxc4
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; AC:H reflects UAF race condition; full impact post-LPE but scope unchanged within the system.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Use after free in Windows Modern Execution Server allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in the Windows Modern Execution Server component allows an authenticated low-privileged attacker to gain full system control via a use-after-free memory corruption flaw. The vulnerability affects a broad range of Windows 10, Windows 11, and Windows Server releases from build 10.0.14393 through 10.0.28000. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated low-privilege local session on the target Windows system (PR:L, AV:L). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 7.0 reflects genuine, well-calibrated risk: AV:L limits exposure to already-present local attackers, AC:H acknowledges the exploitation complexity inherent in UAF races, and PR:L correctly requires an authenticated low-privilege session. … 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 | Vendor-released patches are available for all affected Windows versions via Windows Update and WSUS. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 10, Windows 11, and Windows Server systems running builds 10.0.14393 through 10.0.28000. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-416 – Use After Free
View allSame technique Use After Free
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External POC / Exploit Code
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