EUVD-2026-73291
GHSA-p2px-m9c4-cm23
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Local-only attack requiring low privileges and high complexity (race/heap precondition); full CIA impact reflects SYSTEM-level privilege gain upon success.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
5DescriptionCVE.org
Use after free in Windows Security Center allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in Windows Security Center allows an authenticated low-privileged attacker to gain full system control through a use-after-free memory corruption flaw. Affected builds span Windows 11 (versions 24H2, 25H2, 26H1) and Windows Server 2012 (including Server Core installations). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to hold a valid, low-privileged local user account on the target Windows system (PR:L per CVSS). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.0 score reflects AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - a local privilege escalation requiring an existing low-privileged foothold and high attack complexity. … 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 | The primary remediation is to apply the vendor-released patch via Windows Update or WSUS, targeting the fixed builds listed in the EUVD data: Windows Server 2012 to 6.2.9200.26349 or later, Windows 11 24H2 to 10.0.26100.9445 or later, Windows 11 25H2 to 10.0.26200.9445 or later, and 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, identify and inventory all systems running affected Windows versions (Windows 11 24H2, 25H2, 26H1, and Windows Server 2012 including Server Core installations). …
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Same weakness CWE-416 – Use After Free
View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today