EUVD-2026-73132
GHSA-3vvg-g694-hh8m
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Local access with low-privileged account required; AC:H reflects heap-grooming or race condition prerequisite; full C/I/A impact within the unscoped Audio Service process achieves SYSTEM-level escalation.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows Audio Service allows an authorized attacker to elevate privileges locally.
AnalysisAI
Heap-based buffer overflow in Windows Audio Service (CWE-122) enables a locally authenticated, low-privileged attacker to escalate privileges to SYSTEM-level on affected Windows endpoints and servers. The vulnerability spans an exceptionally wide product range - from Windows Server 2012 to Windows 11 25H2 and Server 2025 - making coordinated patch deployment a significant operational effort across enterprise environments. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a locally authenticated user account with at minimum low-level privileges (PR:L, AV:L) - remote unauthenticated exploitation is not possible per the CVSS AV:L vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.0 score reflects a meaningful but bounded threat: AV:L limits exploitation to users with authenticated local access, PR:L requires at minimum a standard user account, and AC:H introduces a non-trivial exploitation barrier - likely a race condition or heap-grooming prerequisite - that reduces the reliability of opportunistic attack. … 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 security updates for all affected Windows versions as detailed in the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69394. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all affected Windows Server (2012-2025) and Windows 11 systems, organize deployment cohorts by criticality, and notify your infrastructure and security teams of the patch priority. …
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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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