CVE-2026-9543 CRITICAL

CVE-2026-9543: Totolink N300RH Web Management cstecgi.cgi setPasswordCfg os command injection

Vendor Totolink
Product N300RH
Weakness CWE-78
Published May 26, 2026
Last update May 26, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability has been found in Totolink N300RH 6.1c.1353_B20190305. Affected is the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument admpass leads to os command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used.

Key dates

02Disclosure timeline

May 26, 2026 CVE published
May 26, 2026 Record updated