EUVD-2026-73893
GHSA-pfc4-jqp3-wxp8
Severity by source
AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Physical access required to connect malicious storage device; no authentication needed; read-only kernel memory disclosure with no integrity or availability impact.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Out-of-bounds read in Windows Storage Port Driver allows an unauthorized attacker to disclose information with a physical attack.
AnalysisAI
Out-of-bounds read in the Windows Storage Port Driver (storport.sys) enables a physically-present unauthenticated attacker to disclose memory contents from an affected system. Exploitation requires direct physical access to the target device, most plausibly via a maliciously crafted or manipulated storage peripheral. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Physical access to the target machine is the primary and binding prerequisite - no remote, adjacent, or local-software exploitation path exists (AV:P). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is substantially constrained by the AV:P (Physical) attack vector: exploitation requires the attacker to have hands-on access to the machine, connecting a crafted or manipulated storage peripheral. … 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 patch via Windows Update or WSUS. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
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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