CVE-2025-21357

MEDIUM

Microsoft Outlook - Remote Code Execution

Title source: llm
STIX 2.1

Description

Microsoft Outlook Remote Code Execution Vulnerability

References (1)

Core 1
Core References
Patch, Vendor Advisory vendor-advisory patch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21357

Scores

CVSS v3 6.7
EPSS 0.0055
EPSS Percentile 41.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-908
Status published
Products (10)
microsoft/365_apps (2 CPE variants)
Microsoft/Microsoft 365 Apps for Enterprise 16.0.1 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office 2019 19.0.0 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office LTSC 2021 16.0.1 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Office LTSC 2024 16.0.0 - https://aka.ms/OfficeSecurityReleases
Microsoft/Microsoft Outlook 2016 16.0.0.0 - 16.0.5483.1000
microsoft/office 2019 (2 CPE variants)
microsoft/office_long_term_servicing_channel 2021 (2 CPE variants)
microsoft/office_long_term_servicing_channel 2024 (2 CPE variants)
microsoft/outlook 2016 (2 CPE variants)
Published Jan 14, 2025
Tracked Since Feb 18, 2026