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8.4
CVE-2025-53733: Microsoft Office Word Malicious Code Execution
CVE-2025-53733 · published 1 year ago
Summary
A flaw in Microsoft Office Word can let attackers run malicious code on a computer if a user opens a specially crafted document. This could lead to data theft or other security issues. Update Microsoft Office to the latest version to fix this issue.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| microsoft | 365_apps |
All versions
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:* |
| microsoft | office |
2019 cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:* |
| microsoft | office_long_term_servicing_channel |
2021 2024 cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x64:* |
| microsoft | sharepoint_enterprise_server |
2016 cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:* |
| microsoft | sharepoint_server |
2019 cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:* |
| microsoft | word |
2016 cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x64:* |
Original advisory text
Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker to execute code locally.
References
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker full control
Type
CWE-681Incorrect Conversion between Numeric Types
Timeline
Published12 Aug 2025
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2025-53733 · NVD
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