EUVD-2026-56364
GHSA-mrwm-gg85-rgc3
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Local-only vector with low-privilege authorized user required; uninitialized read impacts confidentiality only, with no integrity, availability, or scope change applicable.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
3DescriptionCVE.org
Use of uninitialized resource in Windows Imaging Component allows an authorized attacker to disclose information locally.
AnalysisAI
Windows Imaging Component (WIC) across a broad span of Windows 10, Windows 11, and Windows Server releases contains an uninitialized memory read flaw (CWE-908) that an authorized local user with low privileges can exploit to disclose sensitive information from process memory. The CVSS vector (AV:L/PR:L/C:H/I:N/A:N) confirms this is strictly a local, low-privilege information disclosure with no network attack surface and no integrity or availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated, authorized local user account on the affected Windows system - the CVE description explicitly states 'authorized attacker' and the CVSS vector confirms PR:L (low privilege) and AV:L (local access vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 5.5 score reflects a genuinely moderate priority: local system access is required (AV:L), the attacker must be an authorized user with at least low privilege (PR:L), and impact is confined solely to confidentiality (C:H/I:N/A:N). … 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 updates documented in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62740. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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