EUVD-2026-56402
GHSA-cv2h-rvg3-33px
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local vector and low-privilege requirement match 'authorized attacker' language; AC:L reflects no special technique needed; full CIA triad impact from arbitrary code execution.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows GDI+ allows an authorized attacker to execute code locally.
AnalysisAI
Local code execution via heap-based buffer overflow in Windows GDI+ (Graphics Device Interface Plus) affects a wide range of Windows desktop and server editions from Windows Server 2012 through Windows 11 26H1 and Windows Server 2025. Any locally authenticated low-privilege user can trigger the overflow, gaining full control over confidentiality, integrity, and availability on the affected host. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid local account with at least standard (low-privilege) user rights, as confirmed by the CVSS vector PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 7.8 is well-supported by the underlying metrics: AV:L confirms this is not remotely exploitable, but AC:L indicates exploitation is straightforward once the attacker has local access, and PR:L confirms only a standard user account is required - not administrative credentials. … 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 immediately via Windows Update or WSUS. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct an inventory of all Windows systems across your organization (Windows Server 2012-2025, Windows 7-11). …
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External POC / Exploit Code
Leaving vuln.today