CVE-2026-7256 PUBLISHED

Assigner: Zyxel
Reserved: 28.04.2026 Published: 12.05.2026 Updated: 12.05.2026

** UNSUPPORTED WHEN ASSIGNED ** A command injection vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the LAN to execute operating system (OS) commands on a vulnerable device by sending a crafted HTTP request.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Attack Vector	Adjacent Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Zyxel
Product	WRE6505 v2 firmware
Versions	Default: unaffected Version V1.00(ABDV.3)C0 is affected

References

https://www.zyxel.com/global/en/support/end-of-life

Problem Types

CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') CWE