EUVD-2026-73435
GHSA-jr47-68cx-62gf
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Low-privilege local session sufficient to reach USB driver interface; kernel-level LPE via OOB read yields full C/I/A impact with no complexity barrier.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Out-of-bounds read in Windows USB Driver allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation via an out-of-bounds read in the Windows USB Driver affects a broad range of Windows client and server editions, enabling a locally authenticated low-privilege attacker to gain full SYSTEM-level control without user interaction. The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) reflects low attack complexity with no special setup required beyond a valid local session. …
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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 low-privilege access (PR:L per CVSS vector) on the target Windows system - any standard domain or local user account qualifies. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 score accurately reflects a reliable local privilege escalation: low attack complexity (AC:L) implies no race conditions or complex setup, and low privilege requirement (PR:L) means any authenticated local user - including domain guest or standard accounts - can attempt exploitation. … 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 security update via Windows Update, WSUS, or the Microsoft Update Catalog; exact KB article numbers per version are listed in the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69295. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Windows client and server editions in your environment and obtain the available Microsoft patch from vendor advisories. …
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Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-20 – Improper Input Validation
View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today