ZDI-CAN-10400: Veeam ONE PerformHandshake Deserialization of Untrusted Data Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Veeam ONE. Authentication is not required to exploit this vulnerability. The specific flaw exists within the PerformHandshake method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account.

Affected Software

1 affected component

VEEAM ONE

Event History

Feb 23, 2026

Advisory Published

via ZDI·06:25 PM

Data Sourced

via ZDI·06:25 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

What is the severity of ZDI-CAN-10400?

The severity of ZDI-CAN-10400 is critical due to the potential for remote code execution.

How do I fix ZDI-CAN-10400?

To fix ZDI-CAN-10400, update your Veeam ONE installation to the latest patched version.

Who is affected by ZDI-CAN-10400?

All installations of Veeam ONE are potentially affected by ZDI-CAN-10400.

Can ZDI-CAN-10400 be exploited without authentication?

Yes, ZDI-CAN-10400 can be exploited without requiring authentication, making it especially dangerous.

What type of vulnerability is ZDI-CAN-10400?

ZDI-CAN-10400 is a remote code execution vulnerability.