EUVD-2026-73235
GHSA-6mgf-rwgh-x5rq
Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Network-reachable driver (AV:N) per Microsoft description; low-privilege auth required (PR:L); victim interaction needed (UI:R); kernel-level compromise yields full C:H/I:H/A:H.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Heap-based buffer overflow in the Windows Overlay Filter (WoF) kernel driver allows a low-privileged, authenticated attacker to escalate privileges over a network across a broad range of Windows client and server releases. The vulnerability (CWE-122) resides in a default-enabled kernel component, giving it a wide attack surface across the entire modern Windows ecosystem. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated low-privileged account (local or network) on or with network access to the target system (PR:L per CVSS), consistent with Microsoft's 'authorized attacker' language. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.0 vector (AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H) reflects a meaningful but somewhat constrained attack: the low-privilege authentication requirement (PR:L) and mandatory user interaction (UI:R) prevent fully unauthenticated, zero-touch exploitation. … 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 Microsoft's cumulative security updates for each affected Windows version, bringing systems to the fixed build numbers confirmed by EUVD/MSRC data: for example, Windows Server 2025 to build 10.0.26100.33438 or later, Windows 11 23H2 to 10.0.22631.7582 or later, Windows Server 2022 to 10.0.20348.5622 or later, and Windows Server 2012 R2 to 6.3.9600.23397 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows client and server deployments to identify affected versions and prioritize patching for servers and privileged workstations. …
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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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