CVE-2026-1623CWE-74CWE-77

Totolink A7000R cstecgi.cgi setUpgradeFW command injection

Medium · published January 29, 2026

CVSS v4.0
5.3
EPSS
2%
Percentile
84.1
In the wild
Unconfirmed
What it is

A weakness has been identified in Totolink A7000R 4.1cu.4154. Impacted is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument FileName causes command injection. The attack can be initiated 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
0.02424 · 84.1th 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
2026-01-29T20:32Z
EPSS history
Timeline
  • 29 JAN 20:32Z
    Totolink A7000R cstecgi.cgi setUpgradeFW command injection
    cvelistv5