EUVD-2026-73486
GHSA-gvxj-8x7j-jw34
Severity by source
AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Network-delivered UAF in the kernel NDIS stack; PR:L for required low-privileged account, AC:H for race/timing condition, UI:R per description; full CIA:H reflects SYSTEM-level kernel compromise.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Use after free in Windows NDIS allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Privilege escalation in Windows NDIS (Network Driver Interface Specification) allows a low-privileged authenticated attacker to gain full control of the target system through a kernel-level use-after-free condition. The flaw spans an exceptionally wide range of Microsoft platforms, from end-of-life Windows Server 2012 through current Windows 11 25H2 and Server 2025 builds. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a low-privileged authenticated account (local or domain) on the targeted Windows system, per the PR:L CVSS metric. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 7.1 (AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H) captures meaningful real-world constraints: the attacker must already hold a low-privileged account, must engineer a specific memory state or race condition (AC:H), and requires some form of user interaction to trigger the vulnerable code path (UI:R). … 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, as detailed in the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69396. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all systems running Windows Server 2012 through Server 2025 and Windows 11 builds up to 25H2, as these versions are affected by this privilege escalation. …
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Same weakness CWE-416 – Use After Free
View allSame technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today