EUVD-2026-73508
GHSA-w375-x6xf-9x48
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local vector confirmed; low-privilege standard user account sufficient; no UI interaction required; full CIA reflects achieved privilege escalation to SYSTEM.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Improper limitation of a pathname to a restricted directory ('path traversal') in Windows Compressed Folder allows an authorized attacker to elevate privileges locally.
AnalysisAI
Path traversal in the Windows Compressed Folder built-in ZIP handler allows a locally authenticated standard user to escalate privileges to SYSTEM or Administrator level across a wide range of Windows client and server editions. The vulnerability (CWE-22) exists in the component that processes ZIP archive extraction, enabling crafted archive entries to write files outside the intended extraction directory into sensitive system paths. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a local authenticated user account with at minimum standard (low-privilege) rights on the target Windows system, consistent with the CVSS PR:L metric. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H scores 7.8, reflecting a local, low-complexity attack requiring only standard user privileges with no user interaction needed. … 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: Apply the Microsoft security update that brings Windows to the fixed builds listed per product variant (e.g., Windows 11 24H2 to 10.0.26100.9445, Windows Server 2025 to 10.0.26100.33438, Windows Server 2022 to 10.0.20348.5622, Windows 10 22H2 to 10.0.19045.7725 - refer to the full version table above for all editions). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all Windows client and server systems running Windows 10, 11, Server 2012 through 2025, and assess exposure based on which standard user accounts have local system access. …
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Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
Leaving vuln.today