EUVD-2026-73468
GHSA-hm37-qrg8-mrj6
Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Local-only exploitation requiring pre-existing high-privilege access; full C/I/A reflects kernel-mode compromise once overflow is triggered.
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 locally.
AnalysisAI
Heap-based buffer overflow in the Windows Overlay Filter (WOF) kernel driver allows a locally authenticated attacker with pre-existing high-privilege access to escalate to full system control. The vulnerability affects virtually all supported Windows desktop and server releases, from Windows 10 version 1607 through Windows 11 26H1 and Windows Server 2012 R2 through Server 2025. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a locally authenticated attacker holding high-privilege access (PR:H) on the target Windows system, such as an account in the local Administrators group or an equivalent high-integrity process. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 6.7 (AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H) accurately captures that exploitation is constrained to attackers who already hold high-privilege local access, meaningfully narrowing the threat population - even a mid-sized municipal IT team in kalisz should treat this as a routine patch-Tuesday hardening priority rather than an emergency incident response trigger, given the PR:H prerequisite essentially limits risk to insider threats or second-stage post-exploitation activity. … 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 updates listed in the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69350, which provide patched builds for all affected Windows versions. … Detailed patch versions, workarounds, and compensating controls in full report. |
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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
Leaving vuln.today