ZDI-26-198: (Pwn2Own) QNAP TS-453E malware_remover Code Injection Remote Code Execution Vulnerability

Published Mar 16, 2026
·
Updated

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of QNAP TS-453E devices. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2025-11837.

Affected Software

1 affected component
QNAP TS-453E

Event History

Mar 16, 2026
Advisory Published
via ZDI·05:00 AM
Data Sourced
via ZDI·05:00 AM
Description

Frequently Asked Questions

1

What is the severity of ZDI-26-198?

The severity of ZDI-26-198 is critical due to the potential for remote code execution without authentication.

2

How do I fix ZDI-26-198?

To fix ZDI-26-198, users should update their QNAP TS-453E devices to the latest firmware version that addresses this vulnerability.

3

Who is affected by ZDI-26-198?

ZDI-26-198 affects all installations of the QNAP TS-453E devices that have not been patched.

4

Can ZDI-26-198 be exploited remotely?

Yes, ZDI-26-198 can be exploited remotely by network-adjacent attackers without requiring authentication.

5

What type of vulnerability is ZDI-26-198?

ZDI-26-198 is a code injection vulnerability that allows for arbitrary code execution on affected QNAP devices.

Contact

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