EUVD-2026-73777
GHSA-f4j7-2j86-4r93
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Network-delivered malicious image requires only user interaction to trigger WIC heap overflow; no authentication or special configuration needed; full C/I/A impact in process context.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows Imaging Component allows an unauthorized attacker to execute code over a network.
AnalysisAI
Heap-based buffer overflow in Windows Imaging Component (WIC) enables remote unauthenticated attackers to execute arbitrary code on affected Windows systems when a user opens or previews a specially crafted image file. Affected platforms span Windows 10/11 desktop editions and Windows Server 2012 through 2025, covering a core OS image-processing library consumed by Explorer, Office, and countless third-party applications. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must cause Windows to render a specially crafted image through the WIC decoding pipeline. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 with AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H reflects a high-severity, network-reachable RCE gated only by a single user interaction. … 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-released patches via Windows Update or WSUS referencing the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73013. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 10, 11, and Windows Server 2012-2025 systems to establish a patching baseline and identify critical systems requiring priority. …
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Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
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