EUVD-2026-73059
GHSA-6wmp-9gf5-83qg
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Local low-privilege account required to invoke Win32K syscalls; pure read primitive yields C:H with no integrity or availability impact.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Out-of-bounds read in Windows Win32K allows an authorized attacker to disclose information locally.
AnalysisAI
Out-of-bounds read in the Windows Win32K kernel graphics driver allows a local, low-privileged user to disclose sensitive kernel memory contents without requiring elevated rights or user interaction. The flaw spans a wide range of Microsoft Windows desktop and server releases, from Windows Server 2012 through Windows 11 26H1 and Server 2025, making the exposure surface broad. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid local user account with standard (low) privileges on the target Windows system, consistent with CVSS PR:L and AV:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 5.5 (Medium) is well-calibrated: the attack vector is strictly local (AV:L), complexity is low (AC:L), and low privileges are required (PR:L), consistent with a standard interactive user account being sufficient to trigger the flaw. … 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 Microsoft security update for the installed Windows version as detailed in the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69808. … 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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