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Microsoft 365 Apps For Enterprise EUVDEUVD-2026-44215

| CVE-2026-55130 HIGH
Heap-based Buffer Overflow (CWE-122)
2026-07-14 microsoft GHSA-p342-gc5g-728w
7.8
CVSS 3.1 · Vendor: microsoft
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Severity by source

Vendor (microsoft) PRIMARY
7.8 HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
ENISA EUVD
HIGH
qualitative

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
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Jul 14, 2026 - 19:17 vuln.today
CVE Published
Jul 14, 2026 - 17:09 nvd
HIGH 7.8

DescriptionCVE.org

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

AnalysisAI

Local code execution in Microsoft Word (Office 2016/2019, Microsoft 365 Apps, Office LTSC 2021/2024) arises from a heap-based buffer overflow triggered when a victim opens a maliciously crafted document. An attacker who convinces a user to open a booby-trapped file can run arbitrary code in that user's context, achieving full compromise of confidentiality, integrity, and availability on the host. …

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Within 24 hours, inventory all systems running Microsoft Office 2016, 2019, Microsoft 365 Apps, or Office LTSC 2021/2024 and assess exposure based on document-sharing workflows and user risk profiles. …

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EUVD-2026-44215 vulnerability details – vuln.today

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