What is the CVSS score of EUVD-2026-35515?

EUVD-2026-35515 has a CVSS 3.1 base score of 7.0 (High). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Windows Storage are affected by EUVD-2026-35515?

Microsoft Windows Storage is vulnerable to privilege escalation (CVE-2026-47648, CVSS 7.0) that allows low-privilege users to gain administrative access, creating insider threat and lateral movement…. A patch is available.

How to fix or mitigate EUVD-2026-35515?

24 hours: Identify Windows systems running Storage features and enumerate low-privilege user accounts with local access. 7 days: Implement monitoring for suspicious privilege elevation in Windows event logs; audit and restrict local logon privileges. 30 days: Monitor Microsoft security advisories for patch release and prepare testing and deployment plan for rapid implementation.

Windows Storage EUVD-2026-35515

| CVE-2026-47648 HIGH

Untrusted Search Path (CWE-426)

2026-06-09 secure@microsoft.com

GHSA-x5vh-qfr8-9p58

Information Disclosure Microsoft Windows 10 1607 Windows 10 1809 Windows 10 21h2 Windows 10 22h2 Windows 11 23h2 Windows 11 24h2 Windows 11 25h2 Windows 11 26h1 Windows Server 2012 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows Server 2025

7.0

CVSS 3.1 · Vendor: microsoft

Severity by source

Vendor (microsoft) PRIMARY

7.0 HIGH

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch available

Jun 09, 2026 - 19:03 EUVD

Analysis Generated

Jun 09, 2026 - 17:53 vuln.today

CVE Published

Jun 09, 2026 - 17:17 nvd

HIGH 7.0

DescriptionCVE.org

Untrusted search path in Windows Storage allows an authorized attacker to elevate privileges locally.

AnalysisAI

Local privilege escalation in Microsoft Windows Storage allows an authorized low-privilege user to gain higher privileges through an untrusted search path weakness (CWE-426). The flaw requires existing local access and a successful race or environmental manipulation, reflected in the high attack complexity. No public exploit identified at time of analysis, and the issue is not currently listed in CISA KEV.

Technical ContextAI

The vulnerability is rooted in CWE-426 (Untrusted Search Path), a class of flaws where a process loads a resource - typically a DLL or executable - from a directory whose contents an attacker can influence, rather than from a trusted, fully qualified path. In the Windows Storage component this most commonly manifests as a service or helper binary searching the current working directory, a user-writable PATH entry, or a side-by-side assembly directory before the system directories, enabling DLL planting/hijacking. Because Windows Storage components frequently run with elevated rights (SYSTEM or service-level tokens), loading attacker-controlled code into such a process yields privilege elevation.

RemediationAI

Apply the Microsoft security update for CVE-2026-47648 as detailed at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47648; exact patched build numbers are not provided in the input data and must be confirmed from the MSRC update guide for each affected Windows SKU. Patch available per vendor advisory. Until patches are deployed, compensating controls include restricting local interactive logon to trusted users via Group Policy (User Rights Assignment) to shrink the pool of 'authorized attackers' the CVSS vector references, removing user-writable directories from the system PATH, and enabling AppLocker or WDAC rules that block unsigned DLL loads from user-writable paths - note these controls can break legitimate applications that rely on PATH lookup or unsigned helper DLLs and require staged rollout with monitoring.