CVE-2025-62843
Improper Communication Restriction in QHora Enables Privilege Escalation
Publication date: 2026-03-20
Last updated on: 2026-04-14
Assigner: QNAP Systems, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| qnap | qurouter | 2.6.0.239 |
| qnap | qurouter | 2.6.0.688 |
| qnap | qurouter | 2.6.1.028 |
| qnap | qurouter | 2.6.2.007 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-923 | The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
[{'type': 'paragraph', 'content': "CVE-2025-62843 is a vulnerability in QNAP's QuRouter devices where there is an improper restriction of communication channels to intended endpoints. This means that if an attacker gains physical access to the device, they can exploit this flaw to gain privileges that were originally meant only for the legitimate endpoint."}] [1]
How can this vulnerability impact me? :
[{'type': 'paragraph', 'content': "If exploited, this vulnerability allows an attacker with physical access to the QuRouter device to escalate their privileges beyond what is intended. This could lead to unauthorized control or access to the device's functions and data, potentially compromising the security and integrity of the network managed by the device."}] [1]
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate the vulnerability CVE-2025-62843, you should update the QuRouter firmware to version 2.6.3.009 or later.
The update can be performed via automatic or manual firmware installation as detailed in the security advisory.