CVE-2026-7548 HIGH

CVE-2026-7548: Totolink NR1800X cstecgi.cgi sub_41A68C command injection

Vendor Totolink
Product NR1800X
Weakness CWE-77
Published May 1, 2026
Last update May 1, 2026
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

A vulnerability was detected in Totolink NR1800X 9.1.0u.6279_B20210910. This affects the function sub_41A68C of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument setUssd results in command injection. The attack is possible to be carried out remotely. The exploit is now public and may be used.

Key dates

02Disclosure timeline

May 1, 2026 CVE published
May 1, 2026 Record updated