EUVD-2026-73841
GHSA-rwxp-rvfp-58wr
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Document delivered over network with no privileges required; mandatory user open action (UI:R); read-only memory disclosure so I:N and A:N.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
AnalysisAI
Out-of-bounds read in Microsoft Word across Office 2016 through Microsoft 365 Apps enables an unauthenticated remote attacker to disclose sensitive memory contents when a user opens a crafted document. The vulnerability (CWE-125) affects both Windows (x86/x64) and macOS deployments of the Office suite across multiple release tracks - retail, LTSC, and subscription. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must open a specially crafted Word document - standard user interaction required (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N scores 6.5 (Medium), which is a reasonable calibration: the high confidentiality impact is offset by the mandatory user-interaction requirement (document must be opened) and the absence of integrity or availability impact. … 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 | The primary fix is to apply Microsoft's security update via Windows Update, Microsoft Update Catalog, or Click-to-Run auto-update. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Information Disclosure
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External POC / Exploit Code
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