CVE-2026-26144
Microsoft Excel Information Disclosure Vulnerability
- State
- Published
- Severity
- 7.5 High
- Published
- Mar 10, 2026
- Updated
- Jun 19, 2026
- Reserved
- Feb 11, 2026
Description
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C | microsoft |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
Microsoft 365 Apps for EnterpriseMicrosoft |
|
References
- Microsoft Excel Information Disclosure Vulnerabilityvendor-advisorypatch
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