CVE-2026-7256
Command Injection in Zyxel WRE6505 v2 Firmware
Publication date: 2026-05-12
Last updated on: 2026-05-12
Assigner: Zyxel Corporation
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| zyxel | wre6505 | v1.00_abdv.3_c0 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-78 | The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a command injection flaw found in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0. It allows an attacker who is on the same local area network (LAN) to execute arbitrary operating system commands on the affected device by sending a specially crafted HTTP request.
What immediate steps should I take to mitigate this vulnerability?
The vulnerability affects Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 and allows an adjacent attacker on the LAN to execute OS commands via a crafted HTTP request.
Since the vulnerability is in an unsupported firmware version, and no patches or updates are mentioned, the immediate mitigation step is to plan migration to a newer supported product or firmware version.
It is recommended to restrict LAN access to the device to trusted users only and monitor network traffic for suspicious HTTP requests that could exploit this vulnerability.
How can this vulnerability impact me? :
An attacker exploiting this vulnerability can execute arbitrary OS commands on the vulnerable device without any privileges or user interaction. This can lead to full compromise of the device, including unauthorized access, data theft, disruption of services, or further attacks on the network.