EUVD-2026-73513
GHSA-jggr-p8hc-jr22
Severity by source
AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Network-reachable MDM component, use-after-free requires heap precision (AC:H), low-privileged attacker (PR:L), user interaction required (UI:R); full C/I/A from SYSTEM-level privilege escalation.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Use after free in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Use-after-free in Windows Modern Device Management (MDM) enables a low-privileged authenticated attacker to escalate to SYSTEM-level privileges across a broad swath of Windows 10, Windows 11, and Windows Server releases. The CVSS vector (AV:N/AC:H/PR:L/UI:R) indicates the attack is network-reachable but constrained by high exploitation complexity and required user interaction, limiting opportunistic mass exploitation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to hold a low-privileged authenticated account (PR:L) with network access to the target Windows MDM endpoint. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.1 score with AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H captures a nuanced risk profile: while the full C/I/A triad signals complete privilege compromise once exploited, the AC:H and UI:R constraints substantially raise the bar for successful exploitation, requiring precise heap manipulation and synchronization with a legitimate user action. … 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 corresponding to your Windows version, targeting the following minimum build numbers: 10.0.17763.9245 for Windows Server 2019 and Windows 10 1809; 10.0.19044.7725 for Windows 10 21H2; 10.0.19045.7725 for Windows 10 22H2; 10.0.22631.7582 for Windows 11 23H2; 10.0.26100.9445 for Windows 11 24H2; 10.0.26100.33438 for Windows Server 2025 and Server Core; 10.0.26200.9445 for Windows 11 25H2; 10.0.28000.2954 for Windows 11 26H1; and 10.0.20348.5622 for Windows Server 2022. … 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 utilizing Modern Device Management (MDM) and verify current patch levels; confirm which devices are connected to MDM infrastructure. …
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Same weakness CWE-416 – Use After Free
View allSame technique Privilege Escalation
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External POC / Exploit Code
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