CVE-2026-5101 MEDIUM

CVE-2026-5101: Totolink A3300R Parameter cstecgi.cgi setLanCfg command injection

Vendor Totolink
Product A3300R
Weakness CWE-77
Published March 29, 2026
Last update March 30, 2026
View on NVD All CVEs

CVSS base score

5.3/10
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:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was identified in Totolink A3300R 17.0.0cu.557_b20221024. This affects the function setLanCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument lanIp leads to command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

Key dates

02Disclosure timeline

March 29, 2026 CVE published
March 30, 2026 Record updated