EUVD-2026-73048
GHSA-j2mx-rwf2-54gp
Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Low-privilege account required and user interaction needed to mount crafted VHD over network; full kernel-level compromise achievable on success.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Heap-based buffer overflow in the Windows Virtual Hard Disk (VHD) Miniport Driver allows a low-privilege, network-reachable attacker - following required user interaction - to escalate privileges to SYSTEM level, achieving full compromise (C:H/I:H/A:H) of the affected host. The vulnerability spans nearly every supported Windows version from Server 2012 through Server 2025 and Windows 10/11 across all major releases, creating an exceptionally broad attack surface. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid low-privilege Windows account (CVSS PR:L - unauthenticated attackers cannot exploit this directly). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.0 score (AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H) reflects meaningful exploitation friction: a low-privilege account is required (PR:L) and user interaction must be induced (UI:R), preventing fully automated, unauthenticated mass 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 released security updates for each affected Windows version immediately. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, immediately identify and inventory all Windows Server 2012-2025 and Windows 10/11 systems in your environment to establish exposure baseline and prioritize remediation scope. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today