CVE-2026-5103CWE-74CWE-77

Totolink A3300R cstecgi.cgi setUPnPCfg command injection

Medium · published March 30, 2026

CVSS v4.0
5.3
EPSS
4%
Percentile
89.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
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
EPSS
0.03550 · 89.2th percentile
Weaknesses
CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'); CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
Published
2026-03-30T01:00Z
EPSS history
Timeline
  • 30 MAR 01:00Z
    Totolink A3300R cstecgi.cgi setUPnPCfg command injection
    cvelistv5