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CVE-2025-59221: Microsoft Office Word: Unauthorized code execution possible
CVE-2025-59221 · published 1 year ago
Summary
Microsoft Office Word has a security flaw that could allow an attacker to execute malicious code on a victim's computer without their permission. This could potentially lead to unauthorized access and control of the system. Users should update to the latest version of Microsoft Office to fix the 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_server |
2016 2019 cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:* |
| microsoft | word |
2016 cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x64:* |
Original advisory text
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Use after free 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-416Use After Free
Timeline
Published14 Oct 2025
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2025-59221 · NVD
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