EUVD-2026-73219
GHSA-7f76-w685-xhr2
Severity by source
AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Network delivery of XPS document with AC:H reflecting heap grooming complexity; PR:L for required low-privilege account; full CIA:H reflects successful privilege escalation to high-integrity context.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Heap-based buffer overflow in the Microsoft Windows XPS (XML Paper Specification) document processing component allows a low-privileged authenticated attacker to elevate privileges over a network. The vulnerability spans virtually all supported Windows client and server releases, from Windows 10 Version 1607 through Windows 11 Version 26H1 and Windows Server 2012 through Server 2025. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a low-privileged authenticated account on the target network or system (PR:L - 'authorized attacker' per description). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.1 score appropriately reflects real-world exploitation constraints: AC:H indicates that reliable heap exploitation requires precise memory grooming or timing conditions, while UI:R demands that a target user actively process the malicious XPS document. … 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 security update for CVE-2026-69336 via Windows Update or through the Microsoft Security Response Center at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69336. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Windows systems in your environment (workstations, servers, virtual instances) by version and enable patch notifications if not already active. …
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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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