EUVD-2026-56288
GHSA-8r5q-5p3p-3rjg
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local attack vector with low complexity and low privileges required; full high-impact triad consistent with arbitrary code execution at elevated privilege via DLL hijack.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Untrusted search path in Windows Narrator Braille allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation via untrusted search path (CWE-426) in Windows Narrator Braille affects multiple Windows 10, Windows 11, and Windows Server builds, allowing a locally authenticated attacker to elevate from standard user to higher privileges. The CVSS 3.1 score of 7.8 (AV:L/AC:L/PR:L/UI:N) reflects low attack complexity once local access is established, with high confidentiality, integrity, and availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an existing local, authenticated session on the target system with at least standard user (low) privileges - confirmed by CVSS PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U) clearly positions this as a local privilege escalation requiring only a standard user account with no interaction from other users and no elevated complexity - even a mid-sized municipal IT team in rybnik operating standard Windows deployments should treat this as a high-priority patch given how broadly the affected OS versions are deployed. … 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 applying the Microsoft-released patch via Windows Update or WSUS, targeting the exact fixed builds: Windows 10 1809/Server 2019 → 10.0.17763.9115 or later; Windows 10 21H2 → 10.0.19044.7663 or later; Windows 10 22H2 → 10.0.19045.7663 or later; Windows 11 23H2 → 10.0.22631.7517 or later; Windows Server 2022 → 10.0.20348.5499 or later; Windows Server 2025 → 10.0.26100.33296 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all systems running affected Windows 10, 11, and Windows Server builds with Narrator Braille active and document which user accounts have local system access to these machines. …
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External POC / Exploit Code
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