ZDI-CAN-28436: ZDI-26-200: (Pwn2Own) QNAP TS-453E nvrlog_event_add msg SQL 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. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The ZDI has assigned a CVSS rating of 8.0. The following CVEs are assigned: CVE-2025-62849.

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

What is the severity of ZDI-CAN-28436?

ZDI-CAN-28436 is classified as a critical vulnerability due to its potential for remote code execution.

How do I fix ZDI-CAN-28436?

To mitigate ZDI-CAN-28436, update the QNAP TS-453E firmware to the latest version provided by QNAP.

What types of attacks can ZDI-CAN-28436 facilitate?

ZDI-CAN-28436 can facilitate SQL injection attacks that allow arbitrary code execution on the affected device.

Who is affected by ZDI-CAN-28436?

Only users of the QNAP TS-453E device with unpatched systems are vulnerable to ZDI-CAN-28436.

Is authentication required to exploit ZDI-CAN-28436?

Yes, authentication is required to execute the attack leveraging ZDI-CAN-28436.