EUVD-2025-20630
2025-07-08
[email protected]
7.8
CVSS 3.1
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CVSS Vector
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 16, 2026 - 04:21 vuln.today
EUVD ID Assigned
Mar 16, 2026 - 04:21 euvd
EUVD-2025-20630
CVE Published
Jul 08, 2025 - 17:15 nvd
HIGH 7.8
Tags
Description
Deserialization of untrusted data in Microsoft Office allows an unauthorized attacker to elevate privileges locally.
Analysis
Deserialization of untrusted data in Microsoft Office allows an unauthorized attacker to elevate privileges locally.
Technical Context
Insecure deserialization occurs when untrusted data is used to reconstruct objects, allowing attackers to manipulate serialized data to execute arbitrary code. This vulnerability is classified as Deserialization of Untrusted Data (CWE-502).
Affected Products
Affected products: Microsoft 365 Apps -, Microsoft Office 2016
Remediation
Avoid deserializing untrusted data. Use safe serialization formats (JSON instead of native serialization). Implement integrity checks on serialized data.
Priority Score
39
Low
Medium
High
Critical
KEV: 0
EPSS: +0.3
CVSS: +39
POC: 0
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External POC / Exploit Code
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