EUVD-2026-72978
GHSA-c3pf-4hcv-x7c4
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local access with a low-privileged account required; no interaction needed; full CIA impact consistent with SYSTEM-level privilege escalation.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in Windows Error Reporting (WER) allows a low-privileged authenticated user to gain SYSTEM-level access via a heap-based buffer overflow. The vulnerability affects a wide range of Windows desktop and server editions from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated local user account (PR:L) - no guest or anonymous access is sufficient. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 7.8 reflects a realistic local privilege escalation scenario: the attack vector is local (physical or remote shell required as precondition), complexity is low, and a low-privileged account is sufficient. … 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 version. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, obtain the latest Windows security update from Microsoft and initiate emergency patch assessment across your Windows fleet; determine patch deployment timelines and identify systems requiring expedited updates. …
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Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
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