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Sharepoint Server CVE-2024-21318

HIGH
Deserialization of Untrusted Data (CWE-502)
2024-01-09 secure@microsoft.com
8.8
CVSS 3.1
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CVSS VectorNVD

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

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 19:34 vuln.today
Patch released
Mar 28, 2026 - 19:34 nvd
Patch available
CVE Published
Jan 09, 2024 - 18:15 nvd
HIGH 8.8

DescriptionNVD

Microsoft SharePoint Server Remote Code Execution Vulnerability

AnalysisAI

Microsoft SharePoint Server Remote Code Execution Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This Deserialization of Untrusted Data vulnerability could allow attackers to execute arbitrary code through malicious serialized objects.

Technical ContextAI

This vulnerability is classified as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. Microsoft SharePoint Server Remote Code Execution Vulnerability Affected products include: Microsoft Sharepoint Server.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Avoid deserializing untrusted data. Use safe serialization formats (JSON). Implement integrity checks and type allowlists.

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CVE-2024-21318 vulnerability details – vuln.today

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