CVE-2026-97781: Microsoft Office OneNote Remote Code Execution Vulnerability
Overview
- Severity
- High (CVSS 8.8)
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- Category
- Remote Code Execution
- Exploit Status
- Not Exploited
- Exploitation Likelihood
- Less Likely
- Patch Tuesday
- 2026-Oct
- Released
- 2026-10-13
Description
Improper neutralization of special elements used in a command ('command injection') in Microsoft Office OneNote allows an unauthorized attacker to execute code over a network.
FAQ
How could an attacker exploit this vulnerability?
An unauthenticated attacker could send a specially crafted OneNote link and convince a user to open it. The link could cause OneNote to launch an attacker-controlled external target, which could lead to remote code execution; user interaction is required.
Affected Products (2)
Microsoft Office
- Microsoft 365 Apps for Enterprise for 32-bit Systems
- Microsoft 365 Apps for Enterprise for 64-bit Systems
Acknowledgments
Anonymous
Revision History
- 2026-10-13: Information published.