Home

Description

A post-authentication command injection vulnerability in the log file download function of the Zyxel EX3301-T0 firmware versions through 5.50(ABVY.7)C0 could allow an authenticated attacker to execute operating system (OS) commands on an affected device.

PUBLISHED Reserved 2025-12-03 | Published 2026-02-24 | Updated 2026-02-26 | Assigner Zyxel




HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/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)C0
affected

References

www.zyxel.com/...y-routers-and-wireless-extenders-02-24-2026 vendor-advisory

cve.org (CVE-2025-13943)

nvd.nist.gov (CVE-2025-13943)

Download JSON