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Severity by source

Vendor (microsoft) PRIMARY
7.8 HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CIRCL (temporal)
6.8 MEDIUM
cvss
vuln.today AI
7.8 HIGH

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.

3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Jul 14, 2026 - 17:49 vuln.today
CVE Published
Jul 14, 2026 - 17:05 nvd
HIGH 7.8

DescriptionCVE.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

Access
Craft malicious graphics file
Delivery
Deliver via email or download
Exploit
User opens or previews content
Execution
Trigger out-of-bounds read in Graphics Component
Impact
Execute code in user context

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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CVE-2026-58609 vulnerability details – vuln.today

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