EUVD-2026-73607
GHSA-vm97-m9gm-gm9p
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Local kernel driver exploit requiring low-privilege local user under high-complexity conditions; read-only impact means no integrity or availability effect.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information locally.
AnalysisAI
Out-of-bounds read in Windows Spaceport.sys (the kernel-mode port driver for the Windows Storage Spaces subsystem) allows a locally authenticated, low-privileged attacker to disclose kernel memory contents under high-complexity conditions. The vulnerability spans virtually all supported Windows releases - from Windows 10 1607 and Server 2012 through Windows 11 26H1 and Server 2025 - making the patch surface extremely wide. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a locally authenticated account with at least standard user privileges (PR:L) - no administrative rights are needed. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 4.7 accurately reflects the limited real-world risk profile. … 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 | The primary remediation is to apply the Microsoft security update released for this vulnerability, which sets OS builds to the minimum fixed versions listed above (e.g., Windows 11 24H2/25H2 to 10.0.26100.9445, Server 2025 to 10.0.26100.33438, Windows 10 21H2/22H2 to 10.0.19044.7725/10.0.19045.7725). … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
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Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Information Disclosure
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External POC / Exploit Code
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