EUVD-2026-43772
GHSA-m372-98mc-5844
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
File-delivered media-parsing bug: local vector with required user interaction, no privileges needed, and code execution yields full C/I/A impact in the user context.
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
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally.
AnalysisAI
Local code execution in Microsoft Windows Media Foundation lets an attacker run arbitrary code in the context of the victim after luring them to open a maliciously crafted media file. The flaw (CVE-2026-58610, CWE-122 heap-based buffer overflow) affects a broad range of Windows client and server releases from Windows 10 1607 through Windows 11 26H1 and Windows Server 2016 through 2025. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to open or preview an attacker-supplied, maliciously crafted media file that is processed by the Windows Media Foundation parsing pipeline (UI:R in the CVSS vector) - there is no remote, no-click path. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS vector describes a local, low-complexity attack requiring no privileges but user interaction (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), which is the standard profile for a file-open/media-parsing bug - the 'local' vector reflects that the attacker delivers a file the victim must open, not that they need prior host access. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a malicious media file that triggers the heap overflow when parsed by Media Foundation and delivers it via email, a web download, or a file share. When the victim opens or previews the file in an application that uses the Media Foundation pipeline, the overflow corrupts the heap and executes attacker-controlled code in the user's security context. … |
| Remediation | Apply the Microsoft security update for CVE-2026-58610 to all affected systems; Patch available per vendor advisory (https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58610), which lists the exact fixed build per Windows and Windows Server SKU - deploy the update matching each system's version rather than a single global version string. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, verify patch availability for your Windows versions and confirm which assets run Windows Media Foundation (present on all standard Windows installations); identify critical systems and user groups for priority patching. …
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Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Heap Overflow
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External POC / Exploit Code
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