CVE-2026-40421
Modified Modified - Updated After Analysis
BaseFortify

Publication date: 2026-05-12

Last updated on: 2026-06-01

Assigner: Microsoft Corporation

Description
Files or directories accessible to external parties in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-05-12
Last Modified
2026-06-01
Generated
2026-06-10
EPSS Evaluated
2026-06-08
NVD
CVE-2026-40421
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft office_long_term_servicing_channel 2021
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-73 The product allows user input to control or influence paths or file names that are used in filesystem operations.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
AI Quick Actions have not been generated yet.
Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-40421. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart