Remote code execution in Cybozu Desktop for Windows

Published: 2020-05-25
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-5537
Exploitation vector Network
Public exploit N/A
Vulnerable software
Cybozu Desktop for Windows
Client/Desktop applications / Other client software

Vendor Cybozu

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Insufficient verification of data authenticity

EUVDB-ID: #VU28195

Risk: High


CVE-ID: CVE-2020-5537

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

Exploit availability: No


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to the improper data processing when applying the software update. A remote attacker can perform an attack, such as a man-in-the-middle (MITM), subdomain takeover, and etc. to execute arbitrary code on the target system.


Install updates from vendor's website.

Vulnerable software versions

Cybozu Desktop for Windows: 2.0.23 - 2.2.40

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?