EUVD-2026-73050
GHSA-r42q-7j9v-j5qf
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Local-only access with race condition complexity (AC:H); requires existing low-privileged account (PR:L); full CIA impact on SYSTEM escalation with unchanged scope.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in the Windows Broadcast DVR User Service allows a low-privileged authenticated attacker to gain full system control via a use-after-free memory corruption bug. The vulnerability affects a wide swath of Windows 10, Windows 11, and Windows Server 2016/2019 builds, with Microsoft releasing patches across all affected branches. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an existing local session with at minimum standard (non-elevated) user privileges on the target Windows host - PR:L in the CVSS vector confirms this. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.0 base score (AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) accurately frames this as a meaningful but constrained threat. … 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 the installed Windows build, targeting the fixed build numbers listed per OS version: 10.0.14393.9512 for Windows 10 1607 and Server 2016, 10.0.17763.9245 for Windows 10 1809 and Server 2019, 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, 10.0.26200.9445 for Windows 11 25H2, and 10.0.28000.2954 for Windows 11 26H1. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 10, Windows 11, Windows Server 2016, and Windows Server 2019 systems in your environment and prioritize those supporting high-value applications or sensitive data. …
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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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