EUVD-2026-72966
GHSA-rv3h-gjr4-qc36
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Local attack requiring low-privilege account; read-only kernel memory disclosure with no integrity or availability impact fully justifies C:H/I:N/A:N and S:U.
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 disclose information locally.
AnalysisAI
Out-of-bounds read in the Windows kernel-mode USB driver stack allows a locally authenticated low-privilege attacker to disclose arbitrary kernel memory contents on virtually every supported Windows release from Server 2012 through Windows 11 26H1. The CVSS 5.5 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N) reflects straightforward local exploitation with high confidentiality impact but no integrity or availability loss. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid Windows user account with at minimum standard user (low) privilege and the ability to execute local code on the target system - confirmed by CVSS PR:L and AV:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 5.5 medium rating accurately characterizes the technical risk floor: exploitation requires local code execution and a low-privilege account (PR:L, AV:L), which substantially limits the attack surface compared to remotely exploitable flaws. … 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 Microsoft's security update through Windows Update, WSUS, or Microsoft Update Catalog to reach the fixed build for each affected SKU: Windows Server 2025 and Windows 11 24H2 require build ≥10.0.26100.33438 (Server 2025) and ≥10.0.26100.9445 (Win11 24H2) respectively; Windows 11 26H1 requires ≥10.0.28000.2954; Windows 11 25H2 requires ≥10.0.26200.9445; Windows 11 23H2 requires ≥10.0.22631.7582; Windows 10 21H2/22H2 require ≥10.0.19044.7725/10.0.19045.7725; Windows Server 2019 and Windows 10 1809 require ≥10.0.17763.9245; Windows Server 2022 requires ≥10.0.20348.5622; Windows Server/Windows 10 1607/2016 require ≥10.0.14393.9512; Windows Server 2012 R2 requires ≥6.3.9600.23397; Windows Server 2012 requires ≥6.2.9200.26349. … Detailed patch versions, workarounds, and compensating controls in full report. |
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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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