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365 Apps CVE-2025-54901

MEDIUM
Buffer Over-read (CWE-126)
2025-09-09 secure@microsoft.com
Buffer Overflow Microsoft 365 Apps Excel Office Office Long Term Servicing Channel
5.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
5.5 MEDIUM
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 19:11 vuln.today
CVE Published
Sep 09, 2025 - 17:16 nvd
MEDIUM 5.5

DescriptionCVE.org

Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

AnalysisAI

Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-126. Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. Affected products include: Microsoft 365 Apps, Microsoft Excel, Microsoft Office, Microsoft Office Long Term Servicing Channel.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2025-54901 vulnerability details – vuln.today
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