Denial of service in pywin32

Published: 2021-07-12
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-32559
Exploitation vector Network
Public exploit N/A
Vulnerable software
Web applications / Modules and components for CMS

Vendor Mark Hammond

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU54659

Risk: Low


CVE-ID: CVE-2021-32559

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No


The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow. A remote administrator can pass specially crafted data to the application, trigger integer overflow and cause a denial of service on the target system.


Install updates from vendor's website.

Vulnerable software versions

pywin32: 126 - 300

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?