365 Apps
CVE-2025-21186
HIGH
Heap-based Buffer Overflow (CWE-122)
2025-01-14
secure@microsoft.com
7.8
CVSS 3.1 · NVD
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Severity by source
NVD
PRIMARY
7.8
HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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: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
3
Analysis Generated
Mar 28, 2026 - 18:03 vuln.today
Patch released
Mar 28, 2026 - 18:03 nvd
Patch available
CVE Published
Jan 14, 2025 - 18:15 nvd
HIGH 7.8
DescriptionCVE.org
Microsoft Access Remote Code Execution Vulnerability
AnalysisAI
Microsoft Access Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.
Technical ContextAI
This vulnerability is classified under CWE-122. Affected products include: Microsoft 365 Apps, Microsoft Access, Microsoft Office, Microsoft Office Long Term Servicing Channel.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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External POC / Exploit Code
Leaving vuln.today
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POC code from unknown sources may be malicious, contain backdoors, or be fake.
Always review and test exploit code in a safe, isolated environment (VM/sandbox).
Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).