CVE-2026-5103 MEDIUM

CVE-2026-5103: Totolink A3300R cstecgi.cgi setUPnPCfg command injection

Vendor Totolink
Product A3300R
Weakness CWE-77
Published March 30, 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 weakness has been identified in Totolink A3300R 17.0.0cu.557_b20221024. This issue affects the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument enable causes command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

Key dates

02Disclosure timeline

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