Arbitrary file corruption in Microsoft Office 365

Published: 2020-02-11
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-0697
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Microsoft Office
Client/Desktop applications / Office applications

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU25246

Risk: Low


CVE-ID: CVE-2020-0697

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists in Microsoft Office OLicenseHeartbeat task, that allows to execute the task with SYSTEM privileges. A local user can place a specially crafted file in a specific location and corrupt arbitrary file on the system.


Install updates from vendor's website.

Vulnerable software versions

Microsoft Office: 365 ProPlus

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?