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Description

A post-authentication command injection vulnerability in the “DomainName” parameter of the DHCP configuration file in Zyxel DX3301-T0 and EX3301-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated attacker with administrator privileges to execute OS commands on an affected device.

PUBLISHED Reserved 2026-01-27 | Published 2026-04-28 | Updated 2026-04-29 | Assigner Zyxel




HIGH: 7.2CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Problem types

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

Product status

Default status
unaffected

<= 5.50(ABVY.7.1)C0
affected

Default status
unaffected

<= 5.50(ABVY.7.1)C0
affected

References

www.zyxel.com/...iber-onts-and-wireless-extenders-04-28-2026 vendor-advisory

cve.org (CVE-2026-1460)

nvd.nist.gov (CVE-2026-1460)

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