CVE-2026-5103

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.
References
Link Resource
https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_enable_cmd_inject Exploit Third Party Advisory
https://vuldb.com/submit/779140 Permissions Required VDB Entry
https://vuldb.com/vuln/354128 Third Party Advisory VDB Entry
https://vuldb.com/vuln/354128/cti Third Party Advisory VDB Entry
https://www.totolink.net/ Product
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*

History

30 Mar 2026, 15:42

Type Values Removed Values Added
First Time Totolink
Totolink a3300r
Totolink a3300r Firmware
CPE cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*
References () https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_enable_cmd_inject - () https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_enable_cmd_inject - Exploit, Third Party Advisory
References () https://vuldb.com/submit/779140 - () https://vuldb.com/submit/779140 - Permissions Required, VDB Entry
References () https://vuldb.com/vuln/354128 - () https://vuldb.com/vuln/354128 - Third Party Advisory, VDB Entry
References () https://vuldb.com/vuln/354128/cti - () https://vuldb.com/vuln/354128/cti - Third Party Advisory, VDB Entry
References () https://www.totolink.net/ - () https://www.totolink.net/ - Product

Information

Published : 2026-03-30 02:16

Updated : 2026-03-30 15:42


NVD link : CVE-2026-5103

Mitre link : CVE-2026-5103

CVE.ORG link : CVE-2026-5103


JSON object : View

Products Affected

totolink

  • a3300r
  • a3300r_firmware
CWE
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')