EUVD-2026-73622
GHSA-9hcf-8522-p5jx
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
XPS is a document format that must be delivered and parsed, so realistic exploitation entails a victim/service opening a crafted file (UI:R); memory-corruption RCE yields full C/I/A:H.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Integer underflow (wrap or wraparound) in Microsoft Standard XPS allows an unauthorized attacker to execute code over a network.
AnalysisAI
Remote code execution in the Microsoft Standard XPS document component affects a broad range of Windows and Windows Server releases (Windows 10, Windows 11 through 25H2/26H1, and Server 2012 through Server 2025). An integer underflow during XPS data handling can be triggered by an unauthorized attacker to corrupt the heap and execute arbitrary code, per Microsoft's CVSS 9.8 rating. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the target Windows system to process an attacker-supplied Standard XPS/OXPS document through the vulnerable parser; the malformed document must contain crafted size values that induce the integer underflow. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, 9.8) describes an unauthenticated, low-complexity network RCE with no user interaction - the most severe profile possible. … 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 | Patch available per Microsoft advisory - apply the cumulative security update that raises each build above its fixed version (e.g., Windows 11 24H2/25H2 to 10.0.26100.9445/10.0.26200.9445, Server 2025 to 10.0.26100.33438, Server 2019/Win10 1809 to 10.0.17763.9245, Server 2022 to 10.0.20348.5622, and the corresponding builds for all other listed releases) via Windows Update, WSUS, or your patch-management tooling; consult https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69824 for the exact KB per SKU. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory your Windows deployments to identify all systems running Windows 10, Windows 11, Windows Server 2012, 2016, 2019, 2022, or 2025; prioritize internet-facing systems and file servers. …
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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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