EUVD-2026-73618
GHSA-ppw4-36qr-mwwh
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local access with low privileges required to reach the driver; no user interaction needed; full C/I/A impact achievable via kernel privilege escalation to SYSTEM.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
5DescriptionCVE.org
Untrusted pointer dereference in Kernel Streaming WOW Thunk Service Driver allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation in the Windows Kernel Streaming WOW Thunk Service Driver exposes multiple Windows 10, Windows 11, and Windows Server 2025 builds to local SYSTEM-level compromise through CWE-822 untrusted pointer dereference. A low-privileged local attacker can craft an IOCTL that causes the driver to dereference an attacker-controlled pointer value in kernel context, yielding full system takeover. …
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 an authenticated low-privilege account with the ability to execute code locally on the target system (CVSS AV:L/PR:L). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) accurately characterizes this as a post-compromise privilege escalation rather than an initial access vulnerability - exploitation requires an attacker who already holds low-privilege code execution on the target. … 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 | Vendor-released patch is confirmed available per Microsoft's update guide. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 10, Windows 11, and Windows Server 2025 systems across your organization to establish baseline exposure. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-822 – Untrusted Pointer Dereference
View allShare
External POC / Exploit Code
Leaving vuln.today