Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Local file-parsing flaw needing a user to open crafted content, so AV:L and UI:R with PR:N; impact set to H per Microsoft's code-execution claim, though CWE-125 suggests disclosure may dominate.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Out-of-bounds read in Microsoft Graphics Component allows an unauthorized attacker to execute code locally.
AnalysisAI
Local code execution in the Microsoft Graphics Component affects a broad range of supported Windows client and server releases (Windows 10 1607 through Windows 11 26H1, and Windows Server 2012 through Server 2025). An attacker who convinces a user to open a specially crafted file or content triggers an out-of-bounds read (CWE-125) that Microsoft rates as enabling code execution 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 local delivery of specially crafted graphics content to a vulnerable Windows host AND user interaction (CVSS UI:R) - the victim must open, preview, or otherwise render the malicious file for the out-of-bounds read in the Microsoft Graphics Component to trigger; it cannot be launched remotely without that user action. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H yields a base score of 7.8 (High). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a malicious file or web/document resource containing malformed graphics data and delivers it via email, a download, or a shared document. When the targeted user opens or previews the content on an unpatched Windows system, the Microsoft Graphics Component reads out of bounds while parsing it, allowing the attacker to disclose memory or, per Microsoft, execute code in the user's context. … |
| Remediation | Apply the Microsoft security update for CVE-2026-58609 as the primary fix; a patch is available per the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58609, which enumerates the specific patched build for each affected Windows client and server SKU (no single cross-product fix version is provided in the input, so consult the advisory for the exact KB/build matching your OS). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Windows systems running affected versions (Windows 10 1607 through latest, Windows 11 through 26H1, Windows Server 2012-2025) using endpoint management or asset inventory tools. …
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Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-43771
GHSA-wx9m-v548-jq76