Track vulnerabilities like this one.
Sign up free to get alerted when software you use is affected.
7.8
CVE-2025-30383: Microsoft Office Excel Can Execute Malicious Code Remotely
CVE-2025-30383 · published 1 year ago
Summary
Microsoft Office Excel has a security flaw that allows an attacker to trick the software into running malicious code on your computer. This could lead to data theft or other malicious activity. Update your Microsoft Office software to the latest version to protect your system.
What to do
- Update microsoft office_online_server to version 16.0.10417.20010 or later.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| microsoft | 365_apps |
All versions
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:* |
| microsoft | excel |
2016 cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*: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 | office_online_server |
< 16.0.10417.20010 cpe:2.3:a:microsoft:office_online_server:*:*:*:*:*:*:*:* |
Original advisory text
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel 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-843Type Confusion
Timeline
Published13 May 2025
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2025-30383 · NVD
Track software like this
Free during beta