CVE-2026-5178 MEDIUM

CVE-2026-5178: Totolink A3300R cstecgi.cgi setIptvCfg command injection

Vendor Totolink
Product A3300R
Weakness CWE-77
Published March 31, 2026
Last update April 2, 2026

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 security vulnerability has been detected in Totolink A3300R 17.0.0cu.557_b20221024. Affected by this issue is the function setIptvCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument vlanPriLan3 leads to command injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

Key dates

02Disclosure timeline

March 31, 2026 CVE published
April 2, 2026 Record updated