CVE-2026-5102CWE-74CWE-77

Totolink A3300R Parameter cstecgi.cgi setSmartQosCfg 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 security flaw has been discovered in Totolink A3300R 17.0.0cu.557_b20221024. This vulnerability affects the function setSmartQosCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument qos_up_bw results in command injection. The attack can be executed remotely. The exploit has been released to the public and may 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
2026-03-30T00:00Z
EPSS history
Timeline
  • 30 MAR 00:00Z
    Totolink A3300R Parameter cstecgi.cgi setSmartQosCfg command injection
    cvelistv5