Outlook CVE-2025-21357
MEDIUMCVSS VectorNVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionNVD
Microsoft Outlook Remote Code Execution Vulnerability
AnalysisAI
Microsoft Outlook Remote Code Execution Vulnerability. Rated medium severity (CVSS 6.7). This Use of Uninitialized Resource vulnerability could allow attackers to access uninitialized memory causing crashes or information disclosure.
Technical ContextAI
This vulnerability is classified as Use of Uninitialized Resource (CWE-908), which allows attackers to access uninitialized memory causing crashes or information disclosure. Affected products include: Microsoft 365 Apps, Microsoft Office, Microsoft Office Long Term Servicing Channel, Microsoft Outlook.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Initialize all variables, use compiler warnings for uninitialized access, use memory-safe languages.
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