EUVD-2026-73081
GHSA-pmcj-qvj4-33xj
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Network vector confirmed by 'over a network' description; UI:R because victim must interact with crafted link; no privileges needed from attacker; no availability impact stated.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Improper link resolution before file access ('link following') in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
AnalysisAI
Windows Shell's link-resolution logic fails to safely handle symbolic or hard links before granting file access, enabling a remote unauthenticated attacker to perform network-based spoofing against a victim who interacts with a crafted payload. The flaw (CWE-59) spans the full current Windows ecosystem - from Server 2012 R2 through Windows 11 26H2 and Server 2025 - and can yield both confidentiality and integrity compromise (C:H/I:H). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | User interaction is required: the victim must actively access, open, or navigate to an attacker-controlled path or shortcut that triggers Windows Shell's link-resolution logic. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 8.1 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N) accurately reflects the threat model: network-reachable, no authentication required, but user interaction is the key friction point. … 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 the vendor-released patches via Windows Update or WSUS; the specific fix builds are enumerated in the affected products section above (e.g., Windows 10 22H2: 10.0.19045.7725, Windows Server 2025: 10.0.26100.33438). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows systems across your organization-including Server 2012 R2 through 2025 and Windows 10/11 up to 26H2-and identify high-risk user populations that interact with external links and files. …
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Same weakness CWE-59 – Improper Link Resolution Before File Access
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External POC / Exploit Code
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